These are tables of congressional delegations from Massachusetts to the United States House of Representatives and the United States Senate.
Current delegation
Massachusetts is currently represented by two senators and nine representatives, all of whom are Democrats.
The current dean of the Massachusetts delegation is Senator Ed Markey, having served as a Senator since 2013 and in Congress since 1976.
{| class="wikitable floatright" style="text-align: center;"
|-
! colspan=3 | Current U.S. senators from Massachusetts
|-
! rowspan=2 | <br/><br/>
{| class="wikitable"
! CPVI :
|-
|
|}
! Class I senator
! Class II senator
|- style="vertical-align: top;"
| x150px<br/>Elizabeth Warren<br/><br>
| x150px<br/>Ed Markey<br/><br>
|-
! Party
|
|
|-
! Incumbent since
| January 3, 2013
| July 16, 2013
|}
United States Senate
{| class="wikitable sticky-header" style="text-align:center"
! colspan=2 | Class I senator
! Congress
! colspan=2 | Class II senator
|- style="height:2em"
| | Tristram Dalton (PA)
| bgcolor=#CCCCCC |
| (1789–1791)
| rowspan=2 bgcolor=#CCCCCC |
| rowspan=4 | Caleb Strong (PA)
|- style="height:2em"
| rowspan=3 | George Cabot (PA)
| rowspan=4 |
| (1791–1793)
|- style="height:2em"
| (1793–1795)
| rowspan=4 |
|- style="height:1.25em"
| rowspan=2 | (1795–1797)
|- style="height:1.25em"
| rowspan=3 | Benjamin Goodhue (F)
| rowspan=2 | Theodore Sedgwick (F)
|- style="height:2em"
| rowspan=4 bgcolor=#CCCCCC |
| (1797–1799)
|- style="height:2em"
| rowspan=2 | (1799–1801)
| rowspan=4 bgcolor=#CCCCCC |
| | Samuel Dexter (F)
|- style="height:1.25em"
| rowspan=2 | Jonathan Mason (F)
| rowspan=2 | Dwight Foster (F)
|- style="height:2em"
| (1801–1803)
|- style="height:2em"
| rowspan=3 | John Quincy Adams (F)
| rowspan=4 |
| (1803–1805)
| rowspan=5 | Timothy Pickering (F)
|- style="height:2em"
| (1805–1807)
| rowspan=4 |
|- style="height:1.25em"
| rowspan=2 | (1807–1809)
|- style="height:1.25em"
| rowspan=4 | James Lloyd (F)
|- style="height:2em"
| rowspan=4 bgcolor=#CCCCCC |
| (1809–1811)
|- style="height:2em"
| (1811–1813)
| rowspan=5 bgcolor=#CCCCCC |
| rowspan=5 | Joseph Bradley<br/>Varnum (DR)
|- style="height:1.25em"
| rowspan=2 | (1813–1815)
|- style="height:1.25em"
| rowspan=2 | Christopher Gore (F)
|- style="height:1.25em"
| rowspan=6 |
| rowspan=2 | (1815–1817)
|- style="height:1.25em"
| rowspan=2 | Eli P. Ashmun (F)
|- style="height:1.25em"
| rowspan=2 | (1817–1819)
| rowspan=6 |
| rowspan=5 | Harrison Gray Otis (F)
|- style="height:1.25em"
| rowspan=2 | Prentiss Mellen (F)
|- style="height:1.25em"
| rowspan=2 | (1819–1821)
|- style="height:1.25em"
| rowspan=4 | Elijah H. Mills (F)
|- style="height:1.25em"
| rowspan=5 bgcolor=#CCCCCC |
| rowspan=2 | (1821–1823)
|- style="height:1.25em"
| rowspan=2 | James Lloyd (F)
|- style="height:2em"
| (1823–1825)
| rowspan=4 bgcolor=#CCCCCC |
|- style="height:2em"
| rowspan=2 | Elijah H. Mills (NR)
| rowspan=2 | (1825–1827)
| | James Lloyd (NR)
|- style="height:1.25em"
| rowspan=5 | Nathaniel Silsbee (NR)
|- style="height:2em"
| rowspan=5 | Daniel Webster (NR)
| rowspan=3 |
| (1827–1829)
|- style="height:2em"
| (1829–1831)
| rowspan=3 |
|- style="height:2em"
| (1831–1833)
|- style="height:2em"
| rowspan="3" bgcolor=#CCCCCC |
| (1833–1835)
|- style="height:2em"
| (1835–1837)
| rowspan=4 bgcolor=#CCCCCC |
| | John Davis (NR)
|- style="height:2em"
| rowspan=3 | Daniel Webster (W)
| (1837–1839)
| rowspan=2 | John Davis (W)
|- style="height:1.25em"
| rowspan=4 |
| rowspan=2 | (1839–1841)
|- style="height:1.25em"
| rowspan=4 | Isaac C. Bates (W)
|- style="height:2em"
| rowspan=2 | Rufus Choate (W)
| (1841–1843)
| rowspan=4 |
|- style="height:2em"
| (1843–1845)
|- style="height:1.25em"
| rowspan=4 | Daniel Webster (W)
| rowspan=6 bgcolor=#CCCCCC |
| rowspan=2 | (1845–1847)
|- style="height:1.25em"
| rowspan=6 | John Davis (W)
|- style="height:2em"
| (1847–1849)
| rowspan=5 bgcolor=#CCCCCC |
|- style="height:1.25em"
| rowspan=3 | (1849–1851)
|- style="height:2em"
| | Robert C. Winthrop (W)
|- style="height:2em"
| | Robert Rantoul Jr. (D)
|- style="height:2em"
| rowspan=5 | Charles Sumner (FS)
| rowspan=5 |
| (1851–1853)
|- style="height:2em"
| rowspan=3 | (1853–1855)
| rowspan=5 |
| | Edward Everett (W)
|- style="height:2em"
| | Julius Rockwell (W)
|- style="height:1.25em"
| | Henry Wilson (FS)
|- style="height:2em"
| (1855–1857)
| rowspan=9 | Henry Wilson (R)
|- style="height:2em"
| rowspan=8 | Charles Sumner (R)
| rowspan=3 bgcolor=#CCCCCC |
| (1857–1859)
|- style="height:2em"
| (1859–1861)
| rowspan=3 bgcolor=#CCCCCC |
|- style="height:2em"
| (1861–1863)
|- style="height:2em"
| rowspan=3 |
| (1863–1865)
|- style="height:2em"
| (1865–1867)
| rowspan=3 |
|- style="height:2em"
| (1867–1869)
|- style="height:2em"
| rowspan=4 bgcolor=#CCCCCC |
| (1869–1871)
|- style="height:2em"
| (1871–1873)
| rowspan=4 bgcolor=#CCCCCC |
|- style="height:2em"
| | Charles Sumner (LR)
| rowspan=2 | (1873–1875)
| rowspan=3 | George S. Boutwell (R)
|- style="height:2em"
| | William B. Washburn (R)
|- style="height:2em"
| rowspan=9 | Henry L. Dawes (R)
| rowspan=3 |
| (1875–1877)
|- style="height:2em"
| (1877–1879)
| rowspan=3 |
| rowspan=14 | George F. Hoar (R)
|- style="height:2em"
| (1879–1881)
|- style="height:2em"
| rowspan=3 bgcolor=#CCCCCC |
| (1881–1883)
|- style="height:2em"
| (1883–1885)
| rowspan=3 bgcolor=#CCCCCC |
|- style="height:2em"
| (1885–1887)
|- style="height:2em"
| rowspan=3 |
| (1887–1889)
|- style="height:2em"
| (1889–1891)
| rowspan=3 |
|- style="height:2em"
| (1891–1893)
|- style="height:2em"
| rowspan=17 | Henry Cabot Lodge (R)
| rowspan=3 bgcolor=#CCCCCC |
| (1893–1895)
|- style="height:2em"
| (1895–1897)
| rowspan=3 bgcolor=#CCCCCC |
|- style="height:2em"
| (1897–1899)
|- style="height:2em"
| rowspan=4 |
| (1899–1901)
|- style="height:2em"
| (1901–1903)
| rowspan=4 |
|- style="height:1.25em"
| rowspan=2 | (1903–1905)
|- style="height:1.25em"
| rowspan=5 | Winthrop M. Crane (R)
|- style="height:2em"
| rowspan=3 bgcolor=#CCCCCC |
| (1905–1907)
|- style="height:2em"
| (1907–1909)
| rowspan=3 bgcolor=#CCCCCC |
|- style="height:2em"
| (1909–1911)
|- style="height:2em"
| rowspan=3 |
| (1911–1913)
|- style="height:2em"
| (1913–1915)
| rowspan=3 |
| rowspan=3 | John W. Weeks (R)
|- style="height:2em"
| (1915–1917)
|- style="height:2em"
| rowspan=3 bgcolor=#CCCCCC |
| (1917–1919)
|- style="height:2em"
| (1919–1921)
| rowspan=4 bgcolor=#CCCCCC |
| rowspan=4 | David I. Walsh (D)
|- style="height:2em"
| (1921–1923)
|- style="height:1.25em"
| rowspan=5 |
| rowspan=2 | (1923–1925)
|- style="height:1.25em"
| rowspan=2 | William M. Butler (R)
|- style="height:1.25em"
| rowspan=2 | (1925–1927)
| rowspan=4 |
| rowspan=4 | Frederick H. Gillett (R)
|- style="height:1.25em"
| rowspan=12 | David I. Walsh (D)
|- style="height:2em"
| (1927–1929)
|- style="height:2em"
| rowspan=3 bgcolor=#CCCCCC |
| (1929–1931)
|- style="height:2em"
| (1931–1933)
| rowspan=3 bgcolor=#CCCCCC |
| rowspan=3 | Marcus A. Coolidge (D)
|- style="height:2em"
| (1933–1935)
|- style="height:2em"
| rowspan=3 |
| (1935–1937)
|- style="height:2em"
| (1937–1939)
| rowspan=3 |
| rowspan=4 | Henry Cabot Lodge Jr. (R)
|- style="height:2em"
| (1939–1941)
|- style="height:2em"
| rowspan=4 bgcolor=#CCCCCC |
| (1941–1943)
|- style="height:1.25em"
| rowspan=2 | (1943–1945)
| rowspan=4 bgcolor=#CCCCCC |
|- style="height:2em"
| | Sinclair Weeks (R)
|- style="height:2em"
| (1945–1947)
| rowspan=13 | Leverett Saltonstall (R)
|- style="height:2em"
| rowspan=3 | Henry Cabot Lodge Jr. (R)
| rowspan=3 |
| (1947–1949)
|- style="height:2em"
| (1949–1951)
| rowspan=3 |
|- style="height:2em"
| (1951–1953)
|- style="height:2em"
| rowspan=4 | John F. Kennedy (D)
| rowspan=3 bgcolor=#CCCCCC |
| (1953–1955)
|- style="height:2em"
| (1955–1957)
| rowspan=4 bgcolor=#CCCCCC |
|- style="height:2em"
| (1957–1959)
|- style="height:1.25em"
| rowspan=5 |
| rowspan=2 | (1959–1961)
|- style="height:1.25em"
| rowspan=2 | Benjamin A. Smith II (D)
|- style="height:1.25em"
| rowspan=2 | (1961–1963)
| rowspan=4 |
|- style="height:1.25em"
| rowspan=26 | Ted Kennedy (D)
|- style="height:2em"
| (1963–1965)
|- style="height:2em"
| rowspan=3 bgcolor=#CCCCCC |
| (1965–1967)
|- style="height:2em"
| (1967–1969)
| rowspan=3 bgcolor=#CCCCCC |
| rowspan=6 | Edward Brooke (R)
|- style="height:2em"
| (1969–1971)
|- style="height:2em"
| rowspan=3 |
| (1971–1973)
|- style="height:2em"
| (1973–1975)
| rowspan=3 |
|- style="height:2em"
| (1975–1977)
|- style="height:2em"
| rowspan=3 bgcolor=#CCCCCC |
| (1977–1979)
|- style="height:2em"
| (1979–1981)
| rowspan=4 bgcolor=#CCCCCC |
| rowspan=3 | Paul Tsongas (D)
|- style="height:2em"
| (1981–1983)
|- style="height:1.25em"
| rowspan=4 |
| rowspan=2 | (1983–1985)
|- style="height:1.25em"
| rowspan=18 | John Kerry (D)
|- style="height:2em"
| (1985–1987)
| rowspan=3 |
|- style="height:2em"
| (1987–1989)
|- style="height:2em"
| rowspan=3 bgcolor=#CCCCCC |
| (1989–1991)
|- style="height:2em"
| (1991–1993)
| rowspan=3 bgcolor=#CCCCCC |
|- style="height:2em"
| (1993–1995)
|- style="height:2em"
| rowspan=3 |
| (1995–1997)
|- style="height:2em"
| (1997–1999)
| rowspan=3 |
|- style="height:2em"
| (1999–2001)
|- style="height:2em"
| rowspan=3 bgcolor=#CCCCCC |
| (2001–2003)
|- style="height:2em"
| (2003–2005)
| rowspan=3 bgcolor=#CCCCCC |
|- style="height:2em"
| (2005–2007)
|- style="height:2em"
| rowspan=5 |
| (2007–2009)
|- style="height:1.25em"
| rowspan=3 | (2009–2011)
| rowspan=7 |
|- style="height:2em"
| | Paul G. Kirk (D)
|- style="height:1.25em"
| rowspan=2 | Scott Brown (R)
|- style="height:2em"
| (2011–2013)
|- style="height:1.25em"
| rowspan=9 | Elizabeth Warren (D)
| rowspan=5 bgcolor=#CCCCCC |
| rowspan=3 | (2013–2015)
|- style="height:2em"
| | Mo Cowan (D)
|- style="height:1.25em"
| rowspan=7 | Ed Markey (D)
|- style="height:2em"
| (2015–2017)
| rowspan=3 bgcolor=#CCCCCC |
|- style="height:2em"
| (2017–2019)
|- style="height:2em"
| rowspan=3 |
| (2019–2021)
|- style="height:2em"
| (2021–2023)
| rowspan=3 |
|- style="height:2em"
| (2023–2025)
|- style="height:2em"
| rowspan=1 bgcolor=#CCCCCC |
| (2025–2027)
|}
United States House of Representatives
1789 to 1793: 8 seats
Article I of the United States Constitution allocated 8 seats to Massachusetts.
{| class=wikitable style="text-align:center"
|-
! rowspan=2 | Congress
! colspan=8 | District
|- style="height: 2em"
!
!
!
!
!
!
!
!
|- style="height: 2em"
| scope="row" rowspan=2 |
| rowspan=3 | Fisher<br/>Ames <small>(PA)</small>
| rowspan=3 | Benjamin<br/>Goodhue <small>(PA)</small>
| rowspan=3 | Elbridge<br/>Gerry <small>(AA)</small>
| rowspan=3 | Theodore<br/>Sedgwick <small>(PA)</small>
| | George Partridge <small>(PA)</small>
| rowspan=2 | George<br/>Thatcher <small>(PA)</small>
| rowspan=2 | George<br/>Leonard <small>(PA)</small>
| rowspan=2 | Jonathan Grout <small>(AA)</small>
|- style="height: 2em"
| | vacant
|- style="height: 2.5em"
| scope="row" |
| | Shearjashub Bourne <small>(PA)</small>
| | George Leonard <small>(PA)</small>
| | Artemas Ward <small>(PA)</small>
| | George Thatcher <small>(PA)</small>
|}
1793 to 1803: 14 seats
After the 1790 census, Massachusetts gained six seats.
In the third Congress only, there were plural districts in which more than one member would be elected from the same district and there was also an at-large seat. After that Congress, however, there would be no at-large seats and no plural seats.
{| class=wikitable style="text-align:center"
|-
! rowspan=2 | Congress
! colspan=14 | District
|- style="height: 2em"
! colspan=4 | (4 seats)
! colspan=4 | (4 seats)
! colspan=2 | (2 seats)
! colspan=3 | (3 seats)
!
|- style="height: 2em"
| scope="row" | <br/>
| | Samuel<br/>Holten <small>(AA)</small>
| | Benjamin<br/>Goodhue <small>(PA)</small>
| | Samuel<br/>Dexter <small>(PA)</small>
| | Fisher<br/>Ames <small>(PA)</small>
| | Dwight<br/>Foster <small>(PA)</small>
| | Theodore<br/>Sedgwick <small>(PA)</small>
| | William<br/>Lyman <small>(AA)</small>
| | Artemas<br/>Ward <small>(PA)</small>
| | Peleg Coffin<br/>Jr. <small>(PA)</small>
| | Shearjashub<br/>Bourne <small>(PA)</small>
| | Peleg<br/>Wadsworth <small>(PA)</small>
| | Henry<br/>Dearborn <small>(AA)</small>
| | George<br/>Thatcher <small>(PA)</small>
| | David<br/>Cobb <small>(PA)</small>
|- style="height:2em"
! rowspan=2 | Congress
! colspan=14 | District
|- style="height:2em"
!
!
!
!
!
!
!
!
!
!
!
!
!
!
|- style="height:2em"
| scope=row rowspan=2 | <br/>(1795–1797)
| | Theodore<br/>Sedgwick <small>(F)</small>
| rowspan=2 | William<br/>Lyman <small>(DR)</small>
| rowspan=5 | Samuel<br/>Lyman <small>(F)</small>
| rowspan=5 | Dwight<br/>Foster <small>(F)</small>
| rowspan=4 | Nathaniel<br/>Freeman<br/>Jr. <small>(DR)</small>
| rowspan=6 | John Reed<br/>Sr. <small>(F)</small>
| rowspan=2 | George<br/>Leonard <small>(F)</small>
| rowspan=2 | Fisher<br/>Ames <small>(F)</small>
| rowspan=8 | Joseph<br/>Bradley<br/>Varnum <small>(DR)</small>
| | Benjamin<br/>Goodhue <small>(F)</small>
| rowspan=3 | Theophilus<br/>Bradbury <small>(F)</small>
| rowspan=2 | Henry<br/>Dearborn <small>(DR)</small>
| rowspan=8 | Peleg<br/>Wadsworth<br/><small>(F)</small>
| rowspan=6 | George<br/>Thatcher<br/><small>(F)</small>
|- style="height:2em"
| rowspan=3 | Thomson J.<br/>Skinner <small>(DR)</small>
| rowspan=4 | Samuel<br/>Sewall <small>(F)</small>
|- style="height:2em"
| scope=row rowspan=2 | <br/>(1797–1799)
| rowspan=6 | William<br/>Shepard <small>(F)</small>
| rowspan=2 | Stephen<br/>Bullock <small>(F)</small>
| rowspan=4 | Harrison<br/>Gray<br/>Otis <small>(F)</small>
| rowspan=2 | Isaac<br/>Parker <small>(F)</small>
|- style="height:2em"
| rowspan=3 | Bailey<br/>Bartlett <small>(F)</small>
|- style="height:2em"
| scope=row rowspan=2 | <br/>
| rowspan=2 | Theodore<br/>Sedgwick <small>(F)</small>
| rowspan=4 | Lemuel<br/>Williams<br/><small>(F)</small>
| rowspan=4 | Phanuel<br/>Bishop<br/><small>(DR)</small>
| rowspan=3 | Silas Lee <small>(F)</small>
|- style="height:2em"
| rowspan=3 | Ebenezer<br/>Mattoon <small>(F)</small>
| rowspan=2 | Levi Lincoln<br/>Sr. <small>(DR)</small>
| rowspan=3 | Nathan<br/>Read <small>(F)</small>
|- style="height:2em"
| scope=row rowspan=2 | <br/>(1801–1803)
| rowspan=2 | John<br/>Bacon <small>(DR)</small>
| rowspan=2 | Josiah<br/>Smith <small>(DR)</small>
| rowspan=2 | William<br/>Eustis <small>(DR)</small>
| rowspan=2 | Manasseh<br/>Cutler <small>(F)</small>
| rowspan=2 | Richard<br/>Cutts <small>(DR)</small>
|- style="height:2em"
| | Seth Hastings <small>(F)</small>
| | Samuel Thatcher <small>(F)</small>
|}
1803 to 1813: 17 seats
After the 1800 census, Massachusetts gained three seats.
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Cong­ress
! colspan=10 | District
! colspan=7 | District
|- style="height:2em"
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
|- style="height:2em"
| scope=row rowspan=2 | <br/>(1803–1805)
| rowspan=2 | William<br/>Eustis <small>(DR)</small>
| rowspan=4 | Jacob<br/>Crowninshield<br/><small>(DR)</small>
| rowspan=2 | Manasseh<br/>Cutler <small>(F)</small>
| rowspan=7 | Joseph<br/>Bradley<br/>Varnum<br/><small>(DR)</small>
| rowspan=2 | Thomas<br/>Dwight <small>(F)</small>
| rowspan=9 | Samuel<br/>Taggart<br/><small>(F)</small>
| rowspan=2 | Nahum<br/>Mitchell <small>(F)</small>
| rowspan=2 | Lemuel<br/>Williams <small>(F)</small>
| rowspan=3 | Phanuel<br/>Bishop<br/><small>(DR)</small>
| rowspan=3 | Seth<br/>Hastings <small>(F)</small>
| rowspan=6 | William<br/>Stedman<br/><small>(F)</small>
| | Thomson Skinner <small>(DR)</small>
| rowspan=9 | Ebenezer<br/>Seaver<br/><small>(DR)</small>
| rowspan=9 | Richard<br/>Cutts<br/><small>(DR)</small>
| rowspan=3 | Peleg<br/>Wadsworth<br/><small>(F)</small>
| rowspan=2 | Samuel<br/>Thatcher <small>(F)</small>
| rowspan=2 | Phineas<br/>Bruce <small>(F)</small>
|- style="height:2em"
| | Simon Larned <small>(DR)</small>
|- style="height:2em"
| scope=row | <br/>(1805–1807)
| rowspan=7 | Josiah<br/>Quincy III<br/><small>(F)</small>
| | Jeremiah<br/>Nelson <small>(F)</small>
| rowspan=7 | William<br/>Ely <small>(F)</small>
| rowspan=3 | Joseph<br/>Barker <small>(DR)</small>
| rowspan=3 | Isaiah L.<br/>Green<br/><small>(DR)</small>
| | Barnabas<br/>Bidwell <small>(DR)</small>
| rowspan=5 | Orchard<br/>Cook<br/><small>(DR)</small>
| rowspan=3 | John<br/>Chandler<br/><small>(DR)</small>
|- style="height:2em"
| scope=row rowspan=2 | <br/>(1807–1809)
| rowspan=4 | Edward<br/>St. Loe<br/>Livermore<br/><small>(F)</small>
| rowspan=2 | Josiah<br/>Dean <small>(DR)</small>
| rowspan=3 | Jabez<br/>Upham <small>(F)</small>
| rowspan=6 | Ezekiel<br/>Bacon <small>(DR)</small>
| rowspan=2 | Daniel<br/>Ilsley<br/><small>(DR)</small>
|- style="height:2em"
| | Joseph Story <small>(DR)</small>
|- style="height:2em"
| scope=row rowspan=2 | <br/>(1809–1811)
| rowspan=2 | Benjamin<br/>Pickman Jr. <small>(F)</small>
| | William Baylies <small>(F)</small>
| rowspan=2 | Gideon<br/>Gardner<br/><small>(DR)</small>
| rowspan=4 | Laban<br/>Wheaton<br/><small>(F)</small>
| rowspan=2 | Ezekiel<br/>Whitman<br/><small>(F)</small>
| rowspan=3 | Barzillai<br/>Gannett<br/><small>(DR)</small>
|- style="height:2em"
| rowspan=3 | Charles Turner <small>(DR)</small>
| | Joseph Allen <small>(F)</small>
| rowspan=3 | Abijah<br/>Bigelow<br/><small>(F)</small>
|- style="height:2em"
| scope=row rowspan=2 | <br/>(1811–1813)
| rowspan=2 | William<br/>Reed <small>(F)</small>
| rowspan=2 | Leonard<br/>White <small>(F)</small>
| rowspan=2 | William M.<br/>Richardson<br/><small>(DR)</small>
| rowspan=2 | Isaiah L.<br/>Green<br/><small>(DR)</small>
| rowspan=2 | Elijah<br/>Brigham <small>(F)</small>
| rowspan=2 | William<br/>Widgery<br/><small>(DR)</small>
| rowspan=2 | Peleg<br/>Tallman<br/><small>(DR)</small>
|- style="height:2em"
| | Francis Carr <small>(DR)</small>
|}
1813 to 1823: 20 seats, then 13
After the 1810 census, Massachusetts gained three seats to grow to its largest apportionment (so far). In 1820/21, however, seven of those seats were lost to the new state of Maine.
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Cong­ress
! colspan=20 | District
|- style="height:2em"
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
|- style="height:2em"
| scope=row rowspan=2 | <br/>
| rowspan=4 | Artemas<br/>Ward<br/>Jr. <small>(F)</small>
| rowspan=2 | William<br/>Reed <small>(F)</small>
| rowspan=2 | Timothy<br/>Pickering<br/><small>(F)</small>
| | William M.<br/>Richardson <small>(DR)</small>
| rowspan=2 | William<br/>Ely <small>(F)</small>
| rowspan=4 | Samuel<br/>Taggart<br/><small>(F)</small>
| rowspan=2 | William<br/>Baylies<br/><small>(F)</small>
| rowspan=2 | John<br/>Reed Jr.<br/><small>(F)</small>
| rowspan=2 | Laban<br/>Wheaton<br/><small>(F)</small>
| rowspan=2 | Elijah<br/>Brigham<br/><small>(F)</small>
| rowspan=2 | Abijah<br/>Bigelow<br/><small>(F)</small>
| | Daniel<br/>Dewey <small>(F)</small>
| rowspan=6 | Nathaniel<br/>Ruggles<br/><small>(F)</small>
| rowspan=4 | Cyrus<br/>King<br/><small>(F)</small>
| rowspan=4 | George<br/>Bradbury<br/><small>(F)</small>
| rowspan=2 | Samuel<br/>Davis <small>(F)</small>
| rowspan=2 | Abiel<br/>Wood<br/><small>(DR)</small>
| rowspan=2 | John<br/>Wilson<br/><small>(F)</small>
| rowspan=2 | James<br/>Parker<br/><small>(DR)</small>
| rowspan=2 | Levi<br/>Hubbard<br/><small>(DR)</small>
|- style="height:2em"
| | Samuel Dana <small>(DR)</small>
| | John Hulbert <small>(F)</small>
|- style="height:2em"
| scope=row rowspan=2 | <br/>(1815–1817)
| rowspan=2 | Timothy<br/>Pickering <small>(F)</small>
| rowspan="8" | Jeremiah<br/>Nelson<br/><small>(F)</small>
| rowspan=2 | Asahel<br/>Stearns <small>(F)</small>
| rowspan=4 | Elijah H.<br/>Mills<br/><small>(F)</small>
| rowspan=2 | John W.<br/>Hulbert <small>(F)</small>
| rowspan=2 | William<br/>Baylies <small>(F)</small>
| rowspan=2 | John<br/>Reed Jr. <small>(F)</small>
| rowspan=2 | Laban<br/>Wheaton <small>(F)</small>
| | Elijah<br/>Brigham <small>(F)</small>
| rowspan=4 | Solomon<br/>Strong<br/><small>(F)</small>
| rowspan=2 | Benjamin<br/>Brown <small>(F)</small>
| rowspan=2 | James<br/>Carr <small>(F)</small>
| rowspan=4 | Thomas<br/>Rice<br/><small>(F)</small>
| rowspan=2 | Samuel S.<br/>Conner <small>(DR)</small>
| rowspan=3 | Albion<br/>Parris<br/><small>(DR)</small>
|- style="height:2em"
| rowspan=6 | Benjamin<br/>Adams<br/><small>(F)</small>
|- style="height:2em"
| scope=row rowspan=2 | <br/>(1817–1819)
| rowspan=3 | Jonathan<br/>Mason <small>(F)</small>
| rowspan=5 | Nathaniel<br/>Silsbee<br/><small>(DR)</small>
| rowspan="6" | Timothy<br/>Fuller<br/><small>(DR)</small>
| rowspan=6 | Samuel<br/>Clesson<br/>Allen<br/><small>(F)</small>
| rowspan=5 | Henry<br/>Shaw<br/><small>(DR)</small>
| rowspan=3 | Zabdiel<br/>Sampson<br/><small>(DR)</small>
| rowspan=5 | Walter<br/>Folger Jr.<br/><small>(DR)</small>
| rowspan=5 | Marcus<br/>Morton<br/><small>(DR)</small>
| rowspan=3 | John<br/>Holmes<br/><small>(DR)</small>
| rowspan=4 | Ezekiel<br/>Whitman<br/><small>(F)</small>
| rowspan=2 | Benjamin<br/>Orr <small>(F)</small>
| rowspan=2 | John<br/>Wilson <small>(F)</small>
| rowspan=2 | Joshua<br/>Gage <small>(DR)</small>
|- style="height:2em"
| rowspan=3 | Enoch<br/>Lincoln<br/><small>(DR)</small>
|- style="height:2em"
| scope=row rowspan=3 | <br/>(1819–1821)
| rowspan=4 | Samuel<br/>Lathrop<br/><small>(F)</small>
| rowspan=3 | Jonas<br/>Kendall <small>(F)</small>
| | Edward<br/>Dowse <small>(DR)</small>
| rowspan=2 | Mark Langdon<br/>Hill <small>(DR)</small>
| rowspan=2 | Martin<br/>Kinsley <small>(DR)</small>
| rowspan=2 | James<br/>Parker <small>(DR)</small>
| rowspan=2 | Joshua<br/>Cushman <small>(DR)</small>
|- style="height:2em"
| rowspan=3 | Benjamin<br/>Gorham<br/><small>(DR)</small>
| rowspan=3 | Aaron<br/>Hobart<br/><small>(DR)</small>
| rowspan=3 | William<br/>Eustis<br/><small>(DR)</small>
| | vacant
|- style="height:1.5em"
| colspan="7" rowspan="2" style="background:#eee; padding-top:1em" | District of<br/>Maine split
|- style="height:2em"
| scope=row | <br/>(1821–1823)
| | Gideon<br/>Barstow <small>(DR)</small>
| | Henry W.<br/>Dwight <small>(F)</small>
| | John<br/>Reed Jr. <small>(F)</small>
| | Francis<br/>Baylies <small>(F)</small>
| | Jonathan<br/>Russell <small>(DR)</small>
| | Lewis<br/>Bigelow <small>(F)</small>
|}
1823–1833: 13 seats
Following the 1820 census, Massachusetts kept its remaining 13 seats without change.
{| class="wikitable" style="text-align:center"
|- style="height:2em"
! rowspan="2" | Cong­ress
! colspan="13" | District
|- style="height:2em"
!
!
!
!
!
!
!
!
!
!
!
!
!
|- style="height:2em"
| scope="row" | <br />
| | Daniel<br/>Webster <small>(F)</small>
| | Benjamin W.<br/>Crownin­shield <small>(DR)</small>
| | Jeremiah<br/>Nelson <small>(F)</small>
| | Timothy<br/>Fuller <small>(DR)</small>
| | Jonas<br/>Sibley <small>(DR)</small>
| | John<br/>Locke <small>(DR)</small>
| | Samuel Clesson<br/>Allen <small>(F)</small>
| | Samuel<br/>Lathrop <small>(F)</small>
| | Henry W.<br/>Dwight <small>(F)</small>
| | John<br/>Bailey <small>(DR)</small>
| | Aaron<br/>Hobart <small>(DR)</small>
| | Francis<br/>Baylies <small>(F)</small>
| | John Reed<br/>Jr. <small>(F)</small>
|- style="height:2em"
| scope="row" | <br />
| rowspan="2" | Daniel<br/>Webster <small>(NR)</small>
| rowspan="4" | Benjamin W.<br/>Crownin­shield <small>(NR)</small>
| rowspan="4" | John<br/>Varnum <small>(NR)</small>
| rowspan="5" | Edward<br/>Everett <small>(NR)</small>
| rowspan="5" | John<br/>Davis <small>(NR)</small>
| rowspan="3" | John<br/>Locke <small>(NR)</small>
| rowspan="3" | Samuel Clesson<br/>Allen <small>(NR)</small>
| | Samuel<br/>Lathrop <small>(NR)</small>
| rowspan="4" | Henry W.<br/>Dwight <small>(NR)</small>
| rowspan="4" | John<br/>Bailey <small>(NR)</small>
| | Aaron<br/>Hobart <small>(NR)</small>
| | Francis<br/>Baylies <small>(J)</small>
| rowspan="5" | John Reed<br/>Jr. <small>(NR)</small>
|- style="height:2em"
| rowspan="2" scope="row" | <br />
| rowspan="4" | Isaac C.<br/>Bates <small>(NR)</small>
| rowspan="3" | Joseph<br/>Richardson <small>(NR)</small>
| rowspan="4" | James L.<br/>Hodges <small>(NR)</small>
|- style="height:2em"
| rowspan="2" | Benjamin<br/>Gorham <small>(NR)</small>
|- style="height:2em"
| scope="row" | <br />
| rowspan="2" | Joseph G.<br/>Kendall <small>(NR)</small>
| rowspan="2" | George<br/>Grennell<br/>Jr. <small>(NR)</small>
|- style="height:2em"
| scope="row" | <br />
| | Nathan<br/>Appleton <small>(NR)</small>
| | Rufus<br/>Choate <small>(NR)</small>
| | Jeremiah<br/>Nelson <small>(NR)</small>
| | George N.<br/>Briggs <small>(NR)</small>
| | Henry A. S.<br />Dearborn <small>(NR)</small>
| | John Quincy<br/>Adams <small>(NR)</small>
|}
1833 to 1843: 12 seats
After the 1830 census, Massachusetts lost one seat.
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Congress
! colspan=12 | District
|- style="height:2em"
!
!
!
!
!
!
!
!
!
!
!
!
|- style="height:2em"
| scope=row rowspan=2 | <br/>
| rowspan=2 | Benjamin<br/>Gorham <small>(NR)</small>
| | Rufus Choate <small>(NR)</small>
| rowspan=2 | Gayton P.<br/>Osgood <small>(J)</small>
| rowspan=2 | Edward<br/>Everett <small>(NR)</small>
| | John Davis <small>(NR)</small>
| rowspan=3 | George<br/>Grennell<br/>Jr. <small>(NR)</small>
| rowspan=3 | George<br/>N.<br/>Briggs<br/><small>(NR)</small>
| rowspan=2 | Isaac C.<br/>Bates <small>(NR)</small>
| rowspan=3 | William<br/>Jackson<br/><small>()</small>
| rowspan=2 | William<br/>Baylies <small>(NR)</small>
| rowspan=2 | John Reed<br/>Jr. <small>(NR)</small>
| rowspan=3 | John<br/>Quincy<br/>Adams<br/><small>()</small>
|- style="height:2em"
| rowspan=2 | Stephen<br/>Philips <small>(NR)</small>
| rowspan=2 | Levi Lincoln<br/>Jr. <small>(NR)</small>
|- style="height:2em"
| scope=row | <br/>(1835–1837)
| | Abbott<br/>Lawrence <small>(NR)</small>
| | Caleb<br/>Cushing <small>(NR)</small>
| | Samuel<br/>Hoar <small>(NR)</small>
| | William B.<br/>Calhoun <small>(NR)</small>
| | Nathaniel B.<br/>Borden <small>(J)</small>
| | John Reed<br/>Jr. <small>()</small>
|- style="height:2em"
| scope=row rowspan=2 | <br/>(1837–1839)
| rowspan=2 | Richard<br/>Fletcher <small>(W)</small>
| | Stephen Phillips <small>(W)</small>
| rowspan=7 | Caleb<br/>Cushing<br/><small>(W)</small>
| rowspan=7 | William<br/>Parmenter <small>(D)</small>
| rowspan=5 | Levi Lincoln<br/>Jr. <small>(W)</small>
| rowspan=2 | George<br/>Grennell Jr. <small>(W)</small>
| rowspan=7 | George<br/>N.<br/>Briggs<br/><small>(W)</small>
| rowspan=7 | William<br/>B.<br/>Calhoun<br/><small>(W)</small>
| rowspan=7 | William<br/>Soden<br/>Hastings<br/><small>(W)</small>
| rowspan=2 | Nathaniel B.<br/>Borden <small>(D)</small>
| rowspan=4 | John Reed<br/>Jr. <small>(W)</small>
| rowspan=7 | John<br/>Quincy<br/>Adams<br/><small>(W)</small>
|- style="height:2em"
| rowspan=6 | Leverett<br/>Saltonstall I<br/><small>(W)</small>
|- style="height:2em"
| scope=row rowspan=2 | <br/>(1839–1841)
| | Abbott Lawrence <small>(W)</small>
| | James Alvord <small>(W)</small>
| rowspan=2 | Henry<br/>Williams <small>(D)</small>
|- style="height:2em"
| rowspan=2 | Robert C.<br/>Winthrop <small>(W)</small>
| rowspan=4 | Osmyn<br/>Baker <small>(W)</small>
|- style="height:2em"
| scope=row rowspan=3 | <br/>(1841–1843)
| rowspan=3 | Nathaniel B.<br/>Borden <small>(W)</small>
| rowspan=3 | Barker<br/>Burnell<br/><small>(W)</small>
|- style="height:2em"
| | Nathan Appleton <small>(W)</small>
| rowspan=2 | Charles<br/>Hudson <small>(W)</small>
|- style="height:2em"
| | Robert C.<br/>Winthrop <small>(W)</small>
|}
1843 to 1853: 10 seats
After the 1840 census, Massachusetts lost two seats.
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Congress
! colspan=10 | District
|- style="height:2em"
!
!
!
!
!
!
!
!
!
!
|- style="height:2em"
| scope=row rowspan=2 | <br/>
| rowspan=6 | Robert Charles<br/>Winthrop <small>(W)</small>
| rowspan=7 | Daniel P.<br/>King <small>(W)</small>
| rowspan=5 | Amos<br/>Abbott <small>(W)</small>
| rowspan=2 | William<br/>Parmenter <small>(D)</small>
| rowspan=5 | Charles<br/>Hudson <small>(W)</small>
| rowspan=2 | Osmyn<br/>Baker <small>(W)</small>
| rowspan=7 | Julius<br/>Rockwell <small>(W)</small>
| rowspan=4 | John Quincy<br/>Adams <small>(W)</small>
| rowspan=2 | Henry<br/>Williams <small>(D)</small>
| | Barker<br/>Burnell <small>(W)</small>
|- style="height:2em"
| rowspan=6 | Joseph<br/>Grinnell <small>(W)</small>
|- style="height:2em"
| scope=row | <br/>(1845–1847)
| | Benjamin<br/>Thompson <small>(W)</small>
| rowspan=5 | George<br/>Ashmun <small>(W)</small>
| rowspan=3 | Artemas<br/>Hale <small>(W)</small>
|- style="height:2em"
| scope=row rowspan=2 | <br/>(1847–1849)
| rowspan=2 | John G.<br/>Palfrey <small>(W)</small>
|- style="height:2em"
| rowspan=5 | Horace<br/>Mann <small>(W)</small>
|- style="height:2em"
| scope=row rowspan=2 | <br/>(1849–1851)
| rowspan=4 | James H.<br/>Duncan <small>(W)</small>
| rowspan=2 | vacant
| rowspan=4 | Charles<br/>Allen <small>(FS)</small>
| rowspan=3 | Orin<br/>Fowler <small>(W)</small>
|- style="height:2em"
| | Samuel A. Eliot <small>(W)</small>
|- style="height:2em"
| scope=row rowspan=2 | <br/>(1851–1853)
| rowspan=2 | William<br/>Appleton <small>(W)</small>
| | Robert Rantoul <small>(D)</small>
| | Benjamin Thompson <small>(W)</small>
| rowspan=2 | George T.<br/>Davis <small>(W)</small>
| rowspan=2 | John Z.<br/>Goodrich <small>(W)</small>
| rowspan=2 | Zeno<br/>Scudder <small>(W)</small>
|- style="height:2em"
| | Francis B. Fay <small>(W)</small>
| | Lorenzo Sabine <small>(W)</small>
| | Edward P. Little <small>(D)</small>
|}
1853 to 1863: 11 seats
After the 1850 census, Massachusetts gained one seat.
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Congress
! colspan=11 | District
|- style="height:2em"
!
!
!
!
!
!
!
!
!
!
!
|- style="height:2em"
| scope=row rowspan=2 | <br/>
| | Zeno Scudder <small>(W)</small>
| rowspan=2 | Samuel L.<br/>Crocker <small>(W)</small>
| rowspan=2 | J. Wiley<br/>Edmands <small>(W)</small>
| rowspan=2 | Samuel H.<br/>Walley <small>(W)</small>
| rowspan=2 | William<br/>Appleton <small>(W)</small>
| rowspan=2 | Charles W.<br/>Upham <small>(W)</small>
| rowspan=2 | Nathaniel P.<br/>Banks <small>(D)</small>
| rowspan=2 | Tappan<br/>Wentworth <small>(W)</small>
| rowspan=2 | Alexander<br/>De Witt <small>(FS)</small>
| rowspan=2 | Edward<br/>Dickinson <small>(W)</small>
| rowspan=2 | John Z.<br/>Goodrich <small>(W)</small>
|- style="height:2em"
| | Thomas D. Eliot <small>(W)</small>
|- style="height:2em"
| scope=row | <br/>(1855–1857)
| | Robert Bernard<br/>Hall <small>(KN)</small>
| | James<br/>Buffington <small>(KN)</small>
| | William S.<br/>Damrell <small>(KN)</small>
| | Linus B.<br/>Comins <small>(KN)</small>
| | Anson<br/>Burlingame <small>(KN)</small>
| | Timothy<br/>Davis <small>(KN)</small>
| | Nathaniel P.<br/>Banks <small>(KN)</small>
| | Chauncey L.<br/>Knapp <small>(KN)</small>
| | Alexander<br/>De Witt <small>(KN)</small>
| | Calvin C.<br/>Chaffee <small>(KN)</small>
| | Mark<br/>Trafton <small>(KN)</small>
|- style="height:2em"
| scope=row rowspan=2 | <br/>(1857–1859)
| rowspan=2 | Robert Bernard<br/>Hall <small>(R)</small>
| rowspan=5 | James<br/>Buffington <small>(R)</small>
| rowspan=2 | William S.<br/>Damrell <small>(R)</small>
| rowspan=2 | Linus B<br/>Comins <small>(R)</small>
| rowspan=3 | Anson<br/>Burlingame <small>(R)</small>
| rowspan=2 | Timothy<br/>Davis <small>(R)</small>
| | Nathaniel P.<br/>Banks <small>(R)</small>
| rowspan=2 | Chauncey L.<br/>Knapp <small>(R)</small>
| rowspan=3 | Eli<br/>Thayer <small>(R)</small>
| rowspan=2 | Calvin C.<br/>Chaffee <small>(R)</small>
| rowspan=5 | Henry L.<br/>Dawes <small>(R)</small>
|- style="height:2em"
| rowspan=4 | Daniel W.<br/>Gooch <small>(R)</small>
|- style="height:2em"
| scope=row | <br/>(1859–1861)
| rowspan=3 | Thomas D.<br/>Eliot <small>(R)</small>
| rowspan=2 | Charles Francis<br/>Adams Sr. <small>(R)</small>
| rowspan=3 | Alexander<br/>H. Rice <small>(R)</small>
| rowspan=3 | John B.<br/>Alley <small>(R)</small>
| rowspan=3 | Charles R.<br/>Train <small>(R)</small>
| rowspan=3 | Charles<br/>Delano <small>(R)</small>
|- style="height:2em"
| scope=row rowspan=2 | <br/>(1861–1863)
| | William Appleton <small>(U)</small>
| | Goldsmith Bailey <small>(R)</small>
|- style="height:2em"
| | Benjamin Thomas <small>(U)</small>
| | Samuel Hooper <small>(U)</small>
| | Amasa Walker <small>(R)</small>
|}
1863 to 1873: 10 seats
After the 1860 census, Massachusetts lost one seat.
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Congress
! colspan=10 | District
|- style="height:2em"
!
!
!
!
!
!
!
!
!
!
|- style="height:2.5em"
| scope=row |
| rowspan=4 | Thomas D.<br/>Eliot <small>(R)</small>
| rowspan=8 | Oakes<br/>Ames <small>(R)</small>
| rowspan=3 | Alexander<br/>H. Rice <small>(R)</small>
| rowspan=8 | Samuel<br/>Hooper <small>(R)</small>
| rowspan=3 | John B.<br/>Alley <small>(R)</small>
| rowspan=2 | Daniel W.<br/>Gooch <small>(R)</small>
| rowspan=5 | George S.<br/>Boutwell <small>(R)</small>
| rowspan=4 | John D.<br/>Baldwin <small>(R)</small>
| rowspan=7 | William B.<br/>Washburn <small>(R)</small>
| rowspan=8 | Henry L.<br/>Dawes <small>(R)</small>
|- style="height:1.5em"
| scope=row rowspan=2 | (1865–1867)
|- style="height:1.5em"
| rowspan=6 | Nathaniel P.<br/>Banks <small>(R)</small>
|- style="height:2.5em"
| scope=row | (1867–1869)
| rowspan=5 | Ginery<br/>Twichell <small>(R)</small>
| rowspan=5 | Benjamin<br/>Butler <small>(R)</small>
|- style="height:1.5em"
| scope=row rowspan=2 | (1869–1871)
| rowspan=4 | James<br/>Buffington<br/><small>(R)</small>
| rowspan=4 | George F.<br/>Hoar <small>(R)</small>
|- style="height:1.5em"
| rowspan=2 | George M. Brooks <small>(R)</small>
|- style="height:1.5em"
| scope=row rowspan=2 | (1871–1873)
|- style="height:2em"
| | Constantine Esty <small>(R)</small>
| | Alvah Crocker <small>(R)</small>
|}
1873 to 1883: 11 seats
After the 1870 census, Massachusetts gained one seat.
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Congress
! colspan=11 | District
|- style="height:2em"
!
!
!
!
!
!
!
!
!
!
!
|- style="height:2em"
| scope=row rowspan=2 | <br/>
| rowspan=3 | James<br/>Buffington<br/><small>(R)</small>
| rowspan=8 | Benjamin W.<br/>Harris <small>(R)</small>
| | William Whiting <small>(R)</small>
| rowspan=2 | Samuel<br/>Hooper <small>(R)</small>
| rowspan=2 | Daniel W.<br/>Gooch <small>(R)</small>
| rowspan=2 | Benjamin<br/>Butler <small>(R)</small>
| rowspan=2 | Ebenezer R.<br/>Hoar <small>(R)</small>
| rowspan=2 | John M. S.<br/>Williams <small>(R)</small>
| rowspan=4 | George F.<br/>Hoar <small>(R)</small>
| | Alvah Crocker <small>(R)</small>
| rowspan=2 | Henry L.<br/>Dawes <small>(R)</small>
|- style="height:2em"
| rowspan=3 | Henry L.<br/>Pierce <small>(R)</small>
| | Charles Stevens <small>(R)</small>
|- style="height:2em"
| scope=row rowspan=2 | <br/>(1875–1877)
| | Rufus Frost <small>(R)</small>
| rowspan=2 | Nathaniel P.<br/>Banks <small>(I)</small>
| rowspan=2 | Charles Perkins<br/>Thompson <small>(D)</small>
| rowspan=2 | John K.<br/>Tarbox <small>(D)</small>
| rowspan=2 | William W.<br/>Warren <small>(D)</small>
| rowspan=2 | Julius Hawley<br/>Seelye <small>(I)</small>
| rowspan=2 | Chester W.<br/>Chapin <small>(D)</small>
|- style="height:2em"
| rowspan=5 | William W.<br/>Crapo <small>(R)</small>
| |Josiah Abbott <small>(D)</small>
|- style="height:2em"
| scope=row rowspan=2 | <br/>(1877–1879)
| | Walbridge Field <small>(R)</small>
| rowspan=4 | Leopold<br/>Morse <small>(D)</small>
| rowspan=2 | Nathaniel P.<br/>Banks <small>(R)</small>
| rowspan=3 | George B.<br/>Loring <small>(R)</small>
| rowspan=2 | Benjamin<br/>Butler <small>(R)</small>
| rowspan=3 | William<br/>Claflin <small>(R)</small>
| rowspan=4 | William W.<br/>Rice <small>(R)</small>
| rowspan=4 | Amasa<br/>Norcross <small>(R)</small>
| rowspan=4 | George<br/>Robinson <small>(R)</small>
|- style="height:2em"
| | Benjamin Dean <small>(D)</small>
|- style="height:2em"
| scope=row | <br/>(1879–1881)
| | Walbridge Field <small>(R)</small>
| rowspan=2 | Selwyn Z.<br/>Bowman <small>(R)</small>
| rowspan=2 | William A.<br/>Russell <small>(R)</small>
|- style="height:2em"
| scope=row | <br/>(1881–1883)
| | Ambrose<br/>Ranney <small>(R)</small>
| | Eben F.<br/>Stone <small>(R)</small>
| | John W.<br/>Candler <small>(R)</small>
|}
1883 to 1893: 12 seats
After the 1880 census, Massachusetts gained one seat.
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Congress
! colspan=12 | District
|- style="height:2em"
!
!
!
!
!
!
!
!
!
!
!
!
|- style="height:2em"
| scope=row rowspan=2 | <br/>
| rowspan=4 | Robert T.<br/>Davis <small>(R)</small>
| rowspan=4 | John Davis<br/>Long <small>(R)</small>
| rowspan=3 | Ambrose<br/>Ranney <small>(R)</small>
| rowspan=4 | Patrick<br/>Collins <small>(D)</small>
| rowspan=2 | Leopold<br/>Morse <small>(D)</small>
| rowspan=3 | Henry B.<br/>Lovering <small>(D)</small>
| rowspan=3 | Eben F.<br/>Stone <small>(R)</small>
| rowspan=2 | William A.<br/>Russell <small>(R)</small>
| rowspan=2 | Theodore<br/>Lyman III (IR)
| rowspan=3 | William W.<br/>Rice <small>(R)</small>
| rowspan=4 | William<br/>Whiting II <small>(R)</small>
| | George Robinson <small>(R)</small>
|- style="height:2em"
| rowspan=4 | Francis W.<br/>Rockwell <small>(R)</small>
|- style="height:2em"
| scope=row | <br/>(1885–1887)
| rowspan=2 | Edward D.<br/>Hayden <small>(R)</small>
| rowspan=2 | Charles H.<br/>Allen <small>(R)</small>
| | Frederick<br/>D. Ely <small>(R)</small>
|- style="height:2em"
| scope=row | <br/>(1887–1889)
| | Leopold<br/>Morse <small>(D)</small>
| rowspan=3 | Henry Cabot<br/>Lodge <small>(R)</small>
| rowspan=3 | William<br/>Cogswell <small>(R)</small>
| | Edward<br/>Burnett <small>(D)</small>
| | John E.<br/>Russell <small>(D)</small>
|- style="height:2em"
| scope=row | <br/>(1889–1891)
| rowspan=2 | Charles S.<br/>Randall <small>(R)</small>
| rowspan=2 | Elijah A.<br/>Morse <small>(R)</small>
| rowspan=2 | John F.<br/>Andrew <small>(D)</small>
| rowspan=2 | Joseph H.<br/>O'Neil <small>(D)</small>
| | Nathaniel P.<br/>Banks <small>(R)</small>
| | Frederic T.<br/>Greenhalge <small>(R)</small>
| | John W.<br/>Candler <small>(R)</small>
| rowspan=2 | Joseph H.<br/>Walker <small>(R)</small>
| | Rodney<br/>Wallace <small>(R)</small>
|- style="height:2em"
| scope=row | <br/>(1891–1893)
| | Sherman<br/>Hoar <small>(D)</small>
| | Moses T.<br/>Stevens <small>(D)</small>
| | George F.<br/>Williams <small>(D)</small>
| | Frederick S.<br/>Coolidge <small>(D)</small>
| | John Crawford<br/>Crosby <small>(D)</small>
|}
1893 to 1903: 13 seats
After the 1890 census, Massachusetts gained one seat.
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Congress
! colspan=13 | District
|- style="height:2em"
!
!
!
!
!
!
!
!
!
!
!
!
!
|- style="height:2em"
| scope=row | <br/>
| rowspan=4 | Ashley B.<br/>Wright <small>(R)</small>
| rowspan=8 | Frederick H.<br/>Gillett <small>(R)</small>
| rowspan=5 | Joseph H.<br/>Walker <small>(R)</small>
| rowspan=3 | Lewis D.<br/>Apsley <small>(R)</small>
| | Moses T.<br/>Stevens <small>(D)</small>
| rowspan=2 | William<br/>Cogswell <small>(R)</small>
| | William<br/>Everett <small>(D)</small>
| rowspan=8 | Samuel W.<br/>McCall <small>(R)</small>
| | Joseph H.<br/>O'Neil <small>(D)</small>
| | Michael J.<br/>McEttrick (ID)
| rowspan=3 | William Franklin<br/>Draper <small>(R)</small>
| rowspan=3 | Elijah A.<br/>Morse <small>(R)</small>
| | Charles S.<br/>Randall <small>(R)</small>
|- style="height:2em"
| scope=row rowspan=2 | <br/>(1895–1897)
| rowspan=7 | William S.<br/>Knox <small>(R)</small>
| rowspan=4 | William<br/>Emerson<br/>Barrett <small>(R)</small>
| rowspan=5 | John F.<br/>Fitzgerald <small>(D)</small>
| rowspan=2 | Harrison H.<br/>Atwood <small>(R)</small>
| rowspan=3 | John<br/>Simpkins <small>(R)</small>
|- style="height:2em"
| rowspan=5 | William Henry<br/>Moody <small>(R)</small>
|- style="height:2em"
| scope=row rowspan=2 | <br/>(1897–1899)
| rowspan=3 | George W.<br/>Weymouth <small>(R)</small>
| rowspan=2 | Samuel J.<br/>Barrows <small>(R)</small>
| rowspan=3 | Charles F.<br/>Sprague <small>(R)</small>
| rowspan=5 | William C.<br/>Lovering <small>(R)</small>
|- style="height:2em"
| rowspan=4 | George P.<br/>Lawrence <small>(R)</small>
| rowspan=4 | William S.<br/>Greene <small>(R)</small>
|- style="height:2em"
| scope=row | <br/>
| rowspan=3 | John R.<br/>Thayer <small>(D)</small>
| rowspan=3 | Ernest W.<br/>Roberts <small>(R)</small>
| rowspan=3 | Henry F.<br/>Naphen <small>(D)</small>
|- style="height:2em"
| scope=row rowspan=2 | <br/>(1901–1903)
| rowspan=2 | Charles Q.<br/>Tirrell <small>(R)</small>
| rowspan=2 | Joseph A.<br/>Conry <small>(D)</small>
| rowspan=2 | Samuel<br/>Powers <small>(R)</small>
|- style="height:2em"
| | Augustus P.<br/>Gardner <small>(R)</small>
|}
1903 to 1913: 14 seats
After the 1900 census, Massachusetts gained one seat.
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Congress
! colspan=14 | District
|- style="height:2em"
! !! !! !! !! !! !! !! !! !! !! !! !! !!
|- style="height:2.5em"
| scope=row |
| rowspan=7 | George P.<br/>Lawrence<br/><small>(R)</small>
| rowspan=7 | Frederick H.<br/>Gillett <small>(R)</small>
| | John Thayer <small>(D)</small>
| rowspan=5 | Charles Q.<br/>Tirrell <small>(R)</small>
| rowspan=7 | Butler<br/>Ames <small>(R)</small>
| rowspan=7 | Augustus<br/>P.<br/>Gardner <small>(R)</small>
| rowspan=7 | Ernest W.<br/>Roberts <small>(R)</small>
| rowspan=7 | Samuel W.<br/>McCall <small>(R)</small>
| rowspan=6 | John A.<br/>Keliher <small>(D)</small>
| rowspan=3 | William S.<br/>McNary <small>(D)</small>
| rowspan=3 | John<br/>Andrew<br/>Sullivan <small>(D)</small>
| | Samuel Powers <small>(R)</small>
| rowspan=7 | William S.<br/>Greene <small>(R)</small>
| rowspan=5 | William C.<br/>Lovering <small>(R)</small>
|- style="height:2em"
| scope=row rowspan=2 |
| | Rockwood Hoar <small>(R)</small>
| rowspan=6 | John W.<br/>Weeks <small>(R)</small>
|- style="height:2em"
| rowspan=4 | Charles G.<br/>Washburn <small>(R)</small>
|- style="height:2.5em"
| scope=row |
| rowspan=3 | Joseph F.<br/>O'Connell <small>(D)</small>
| rowspan=4 | Andrew J.<br/>Peters <small>(D)</small>
|- style="height:2em"
| scope=row rowspan=2 |
|- style="height:2em"
| | John Mitchell <small>(D)</small>
| | Eugene Foss <small>(D)</small>
|- style="height:2.5em"
| scope=row |
| | John A. Thayer <small>(D)</small>
| | William Wilder <small>(R)</small>
| | Wm. F. Murray <small>(D)</small>
| | James Curley <small>(D)</small>
| | Robert Harris <small>(R)</small>
|}
1913 to 1933: 16 seats
After the 1910 census, Massachusetts gained two seats. There was no reapportionment after the 1920 census.
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Cong­ress
! colspan=16 | District
|- style="height:2em"
! !! !! !! !! !! !! !! !! !! !! !! !! !! !! !!
|- style="height:2em"
| scope=row rowspan=2 | <br/>
| rowspan=17 | Allen<br/>T.<br/>Treadway<br/><small>(R)</small>
| rowspan=11 | Frederick H.<br/>Gillett <small>(R)</small>
| | William Wilder <small>(R)</small>
| rowspan=11 | Samuel<br/>Winslow<br/><small>(R)</small>
| rowspan=12 | John<br/>Jacob<br/>Rogers<br/><small>(R)</small>
| rowspan=4 | Augustus<br/>P.<br/>Gardner<br/><small>(R)</small>
| rowspan=7 | Michael<br/>Francis<br/>Phelan<br/><small>(D)</small>
| rowspan=2 | Frederick S.<br/>Deitrick <small>(D)</small>
| rowspan=3 | Ernest<br/>W.<br/>Roberts<br/><small>(R)</small>
| rowspan=2 | William F.<br/>Murray <small>(D)</small>
| rowspan=2 | Andrew J.<br/>Peters <small>(D)</small>
| | James Curley <small>(D)</small>
| | John Weeks <small>(R)</small>
| rowspan=2 | Edward<br/>Gilmore <small>(D)</small>
| rowspan=10 | William S.<br/>Greene<br/><small>(R)</small>
| rowspan=2 | Thomas C.<br/>Thacher <small>(D)</small>
|- style="height:2em"
| rowspan=10 | Calvin<br/>Page<br/><small>(R)</small>
| rowspan=13 | James<br/>A.<br/>Gallivan<br/><small>(D)</small>
| | John Mitchell <small>(D)</small>
|- style="height:2em"
| scope=row | <br/>
| rowspan=9 | Frederick<br/>W.<br/>Dallinger<br/><small>(R)</small>
| rowspan=4 | Peter<br/>Francis<br/>Tague <small>(D)</small>
| rowspan=15 | George<br/>H.<br/>Tinkham<br/><small>(R)</small>
| rowspan=3 | William<br/>Henry<br/>Carter <small>(R)</small>
| rowspan=5 | Richard<br/>Olney<br/>II <small>(D)</small>
| rowspan=6 | Joseph<br/>Walsh<br/><small>(R)</small>
|- style="height:2em"
| scope=row rowspan=2 | <br/>
| rowspan=4 | Alvan T.<br/>Fuller<br/><small>(R)</small>
|- style="height:2em"
| rowspan=4 | Willfred<br/>W.<br/>Lufkin<br/><small>(R)</small>
|- style="height:1.5em"
| scope=row rowspan=2 | <br/>
| rowspan=12 | Robert<br/>Luce<br/><small>(R)</small>
|- style="height:2em"
| | John Fitzgerald <small>(D)</small>
|- style="height:1.5em"
| scope=row rowspan=2 | <br/>
| rowspan=2 | Robert S.<br/>Maloney <small>(R)</small>
| rowspan=10 | Charles<br/>L.<br/>Underhill<br/><small>(R)</small>
| rowspan=4 | Peter<br/>Francis<br/>Tague <small>(D)</small>
| rowspan=7 | Louis A.<br/>Frothingham<br/><small>(R)</small>
|- style="height:1.5em"
| rowspan=9 | A. Piatt<br/>Andrew<br/><small>(R)</small>
| rowspan=9 | Charles<br/>L.<br/>Gifford<br/><small>(R)</small>
|- style="height:1.5em"
| scope=row rowspan=2 | <br/>
| rowspan=8 | William P.<br/>Connery Jr.<br/><small>(D)</small>
|- style="height:2em"
| | Robert Leach <small>(R)</small>
|- style="height:2em"
| scope=row rowspan=2 | <br/>
| | George Churchill <small>(R)</small>
| rowspan=6 | Frank H.<br/>Foss <small>(R)</small>
| rowspan=5 | George R.<br/>Stobbs <small>(R)</small>
| rowspan=2 | Harry I.<br/>Thayer <small>(R)</small>
| rowspan=6 | John J.<br/>Douglass<br/><small>(D)</small>
| rowspan=6 | Joseph W.<br/>Martin<br/>Jr. <small>(R)</small>
|- style="height:2em"
| rowspan=2 | Henry L.<br/>Bowles <small>(R)</small>
| rowspan=5 | Edith<br/>Nourse<br/>Rogers<br/><small>(R)</small>
|- style="height:2em"
| scope=row | <br/>
| rowspan=4 | Frederick<br/>W.<br/>Dallinger<br/><small>(R)</small>
|- style="height:2em"
| scope=row rowspan=2 | <br/>
| | Will Kaynor <small>(R)</small>
| rowspan=3 | John W.<br/>McCormack<br/><small>(D)</small>
| rowspan=3 | Dick<br/>Wigglesworth<br/><small>(R)</small>
|- style="height:2em"
| rowspan=2 | William J.<br/>Granfield <small>(D)</small>
|- style="height:2em"
| scope=row | <br/>
| | Pehr G.<br/>Holmes <small>(R)</small>
|}
1933 to 1963: 15, then 14 seats
After the 1930 census, Massachusetts lost one seat. After the 1940 census, Massachusetts lost another seat. Massachusetts kept its apportionment following the 1950 census.
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Congress
! colspan=15 | District
|- style="height:2em"
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
|- style="height:2.5em"
| scope=row |
| rowspan=9 | Allen T.<br/>Treadway<br/><small>(R)</small>
| rowspan=3 | William J.<br/>Granfield<br/><small>(D)</small>
| | Frank H.<br/>Foss <small>(R)</small>
| rowspan=10 | Pehr G.<br/>Holmes <small>(R)</small>
| rowspan=21 | Edith<br/>Nourse<br/>Rogers<br/><small>(R)</small>
| rowspan=2 | A. Piatt<br/>Andrew <small>(R)</small>
| rowspan=4 | William P.<br/>Connery<br/>Jr. <small>(D)</small>
| rowspan=7 | Arthur<br/>Daniel<br/>Healey <small>(D)</small>
| | Robert<br/>Luce <small>(R)</small>
| rowspan=8 | George H.<br/>Tinkham <small>(R)</small>
| | John J.<br/>Douglass <small>(D)</small>
| rowspan=23 | John W.<br/>McCormack<br/><small>(D)</small>
| rowspan=19 | Dick<br/>Wigglesworth<br/><small>(R)</small>
| rowspan=23 | Joseph W.<br/>Martin Jr. <small>(R)</small>
| rowspan=8 | Charles L.<br/>Gifford <small>(R)</small>
|- style="height:1.25em"
| scope=row rowspan=2 |
| rowspan=7 | Joseph E.<br/>Casey <small>(D)</small>
| rowspan=2 | Richard M.<br/>Russell <small>(D)</small>
| rowspan=3 | John P.<br/>Higgins <small>(D)</small>
|- style="height:2em"
| | vacant
|- style="height:1.25em"
| scope=row rowspan=2 |
| rowspan=9 | Charles R.<br/>Clason <small>(R)</small>
| rowspan=10 | George J.<br/>Bates <small>(R)</small>
| rowspan=3 | Robert<br/>Luce <small>(R)</small>
|- style="height:1.25em"
| rowspan=3 | Lawrence J.<br/>Connery <small>(D)</small>
| rowspan=4 | Thomas A.<br/>Flaherty <small>(D)</small>
|- style="height:2.5em"
| scope=row |
|- style="height:2em"
| scope=row rowspan=2 |
| rowspan=2 | Thomas H.<br/>Eliot <small>(D)</small>
|- style="height:2em"
| rowspan=16 | Thomas<br/>Lane <small>(D)</small>
| | vacant
|- style="height:2.5em"
| scope=row |
| rowspan=15 | Philip J.<br/>Philbin<br/><small>(D)</small>
| rowspan=9 | Angier<br/>Goodwin<br/><small>(R)</small>
| rowspan=3 | Charles L.<br/>Gifford <small>(R)</small>
| rowspan=8 | Christian<br/>Herter <small>(R)</small>
| rowspan=2 | James<br/>Michael<br/>Curley <small>(D)</small>
|- style="height:2.5em"
| scope=row |
| rowspan=11 | John W.<br/>Heselton <small>(R)</small>
|- style="height:1.25em"
| scope=row rowspan=2 |
| rowspan=13 | Harold<br/>Donohue<br/><small>(D)</small>
| rowspan=6 | John F.<br/>Kennedy<br/><small>(D)</small>
|- style="height:1.25em"
| rowspan=9 | Donald W.<br/>Nicholson<br/><small>(R)</small>
|- style="height:1.25em"
| scope=row rowspan=2 |
| rowspan=3 | Foster<br/>Furcolo <small>(D)</small>
|- style="height:1.25em"
| rowspan=10 | William H.<br/>Bates <small>(R)</small>
|- style="height:1.25em"
| scope=row rowspan=2 |
|- style="height:2em"
| | vacant
|- style="height:2.5em"
| scope=row |
| rowspan=7 | Ed<br/>Boland <small>(D)</small>
| rowspan=7 | Laurence<br/>Curtis <small>(R)</small>
| rowspan=7 | Tip<br/>O'Neill<br/><small>(D)</small>
|- style="height:2.5em"
| scope=row |
| rowspan=6 | Torbert<br/>Macdonald<br/><small>(D)</small>
|- style="height:1.25em"
| scope=row rowspan=2 |
|- style="height:2em"
| | vacant
|- style="height:1.25em"
| scope=row rowspan=2 |
| rowspan=3 | Silvio O.<br/>Conte <small>(R)</small>
| rowspan=3 | Hastings<br/>Keith <small>(R)</small>
| rowspan=3 | James A.<br/>Burke <small>(D)</small>
|- style="height:2em"
| | vacant
|- style="height:2.5em"
| scope=row |
| | F. Bradford<br/>Morse <small>(R)</small>
|}
1963 to 1983: 12 seats
After the 1960 census, Massachusetts lost two seats. Massachusetts kept its apportionment after the 1970 census.
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Congress
! colspan=12 | District
|- style="height:2em"
!
!
!
!
!
!
!
!
!
!
!
!
|- style="height:2.5em"
| scope=row |
| rowspan=14 | Silvio O.<br/>Conte <small>(R)</small>
| rowspan=14 | Ed<br/>Boland<br/><small>(D)</small>
| rowspan=5 | Philip J.<br/>Philbin <small>(D)</small>
| rowspan=7 | Harold<br/>Donohue<br/><small>(D)</small>
| rowspan=6 | F. Bradford<br/>Morse <small>(R)</small>
| rowspan=4 | William H.<br/>Bates <small>(R)</small>
| rowspan=10 | Torbert<br/>Macdonald<br/><small>(D)</small>
| rowspan=14 | Tip<br/>O'Neill<br/><small>(D)</small>
| rowspan=5 | John W.<br/>McCormack<br/><small>(D)</small>
| rowspan=2 | Joseph W.<br/>Martin Jr. <small>(R)</small>
| rowspan=12 | James A.<br/>Burke <small>(D)</small>
| rowspan=7 | Hastings<br/>Keith <small>(R)</small>
|- style="height:2.5em"
| scope=row | (1965–1967)
|- style="height:2.5em"
| scope=row | (1967–1969)
| rowspan=12 | Margaret<br/>Heckler <small>(R)</small>
|- style="height:1.5em"
| scope=row rowspan=2 | (1969–1971)
|- style="height:1.5em"
| rowspan=8 | Mike<br/>Harrington<br/><small>(D)</small>
|- style="height:1.5em"
| scope=row rowspan=2 | (1971–1973)
| rowspan=2 | Robert<br/>Drinan <small>(D)</small>
| rowspan=2 | Louise Day<br/>Hicks <small>(D)</small>
|- style="height:2em"
| | vacant
|- style="height:2.5em"
| scope=row rowspan=2 | (1973–1975)
| | Harold<br/>Donohue <small>(D)</small>
| rowspan=6 | Robert<br/>Drinan <small>(D)</small>
| rowspan=2 | Paul W.<br/>Cronin <small>(R)</small>
| rowspan=7 | Joe<br/>Moakley <small>(D)</small>
| rowspan=7 | Gerry<br/>Studds <small>(D)</small>
|- style="height:2em"
| | vacant
|- style="height:1.25em"
| scope=row rowspan=2 | (1975–1977)
| rowspan=5 | Joseph<br/>Early <small>(D)</small>
| rowspan=3 | Paul<br/>Tsongas <small>(D)</small>
|- style="height:1.25em"
| rowspan=4 | Ed<br/>Markey <small>(D)</small>
|- style="height:2.5em"
| scope=row | (1977–1979)
|- style="height:2.5em"
| scope=row | (1979–1981)
| rowspan=2 | James<br/>Shannon<br/><small>(D)</small>
| rowspan=2 | Nicholas<br/>Mavroules<br/><small>(D)</small>
| rowspan=2 | Brian J.<br/>Donnelly<br/><small>(D)</small>
|- style="height:2.5em"
| scope=row | (1981–1983)
| | Barney<br/>Frank <small>(D)</small>
|}
1983 to 1993: 11 seats
After the 1980 census, Massachusetts lost one seat.
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Congress
! colspan=11 | District
|- style="height:2em"
!
!
!
!
!
!
!
!
!
!
!
|- style="height:2.5em"
| scope=row |
| rowspan=5 | Silvio O.<br/>Conte <small>(R)</small>
| rowspan=3 | Ed<br/>Boland<br/><small>(D)</small>
| rowspan=6 | Joseph<br/>Early <small>(D)</small>
| rowspan=6 | Barney<br/>Frank <small>(D)</small>
| | James<br/>Shannon <small>(D)</small>
| rowspan=6 | Nicholas<br/>Mavroules<br/><small>(D)</small>
| rowspan=6 | Ed<br/>Markey<br/><small>(D)</small>
| rowspan=2 | Tip<br/>O'Neill <small>(D)</small>
| rowspan=6 | Joe<br/>Moakley<br/><small>(D)</small>
| rowspan=6 | Gerry<br/>Studds<br/><small>(D)</small>
| rowspan=6 | Brian J.<br/>Donnelly<br/><small>(D)</small>
|- style="height:2.5em"
| scope=row |
| rowspan=5 | Chester G.<br/>Atkins <small>(D)</small>
|- style="height:2.5em"
| scope=row |
| rowspan=4 | Joseph P.<br/>Kennedy II<br/><small>(D)</small>
|- style="height:2.5em"
| scope=row |
| rowspan=3 | Richard<br/>Neal <small>(D)</small>
|- style="height:1.25em"
| scope=row rowspan=2 |
|- style="height:2em"
| | John Olver <small>(D)</small>
|}
1993 to 2013: 10 seats
After the 1990 census, Massachusetts lost one seat. Massachusetts kept its apportionment after the 2000 census.
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Congress
! colspan=10 | District
|- style="height:2em"
!
!
!
!
!
!
!
!
!
!
|- style="height:2.5em"
| scope=row |
| rowspan=12 | John<br/>Olver <small>(D)</small>
| rowspan=12 | Richard<br/>Neal <small>(D)</small>
| rowspan=2 | Peter<br/>Blute <small>(R)</small>
| rowspan=12 | Barney<br/>Frank <small>(D)</small>
| rowspan=9 | Marty<br/>Meehan<br/><small>(D)</small>
| rowspan=2 | Peter G.<br/>Torkildsen<br/><small>(R)</small>
| rowspan=12 | Ed<br/>Markey <small>(D)</small>
| rowspan=3 | Joseph P.<br/>Kennedy II<br/><small>(D)</small>
| rowspan=5 | Joe<br/>Moakley<br/><small>(D)</small>
| rowspan=2 | Gerry<br/>Studds <small>(D)</small>
|- style="height:2.5em"
| scope=row |
|- style="height:2.5em"
| scope=row |
| rowspan=10 | Jim<br/>McGovern<br/><small>(D)</small>
| rowspan=10 | John<br/>Tierney<br/><small>(D)</small>
| rowspan=9 | Bill<br/>Delahunt<br/><small>(D)</small>
|- style="height:2.5em"
| scope=row |
| rowspan=9 | Mike<br/>Capuano<br/><small>(D)</small>
|- style="height:1.5em"
| scope=row rowspan=2 |
|- style="height:1.5em"
| rowspan=7 | Stephen<br/>Lynch <small>(D)</small>
|- style="height:2.5em"
| scope=row |
|- style="height:2.5em"
| scope=row |
|- style="height:1.5em"
| scope=row rowspan=2 |
|- style="height:1.5em"
| rowspan=3 | Niki<br/>Tsongas<br/><small>(D)</small>
|- style="height:2.5em"
| scope=row |
|- style="height:2.5em"
| scope=row |
| | Bill Keating <small>(D)</small>
|}
2013 to present: 9 seats
After the 2010 census, Massachusetts lost one seat. Massachusetts kept its apportionment after the 2020 census.
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Congress
! colspan=9 | District
|- style="height:2em"
!
!
!
!
!
!
!
!
!
|- style="height:2em"
| rowspan=2 |
| rowspan=8 | Richard<br/>Neal <small>(D)</small>
| rowspan=8 | Jim<br/>McGovern<br/><small>(D)</small>
| rowspan=4 | Niki<br/>Tsongas <small>(D)</small>
| rowspan=5 | Joe<br/>Kennedy<br/>III <small>(D)</small>
| | Ed Markey <small>(D)</small>
| rowspan=2 | John Tierney <small>(D)</small>
| rowspan=4 | Mike<br/>Capuano<br/><small>(D)</small>
| rowspan=8 | Stephen<br/>Lynch <small>(D)</small>
| rowspan=8 | Bill<br/>Keating <small>(D)</small>
|- style="height:1.5em"
| rowspan=7 | Katherine<br/>Clark <small>(D)</small>
|- style="height:2.5em"
|
| rowspan=6 | Seth Moulton<br/><small>(D)</small>
|- style="height:2.5em"
|
|- style="height:2.5em"
|
| rowspan=4 | Lori<br/>Trahan <small>(D)</small>
| rowspan=4 | Ayanna<br/>Pressley<br/><small>(D)</small>
|- style="height:2.5em"
|
| rowspan=3 | Jake<br/>Auchincloss <small>(D)</small>
|- style="height:2.5em"
|
|- style="height:2.5em"
|
|}
Key
See also
- List of United States congressional districts
- Massachusetts's congressional districts
- Political party strength in Massachusetts