thumb|upright=1.7|right|alt=refer to caption|Map of Connecticut's five congressional districts for the [[United States House of Representatives since 2022]]
Since Connecticut became a U.S. state in 1788, it has sent congressional delegations to the United States Senate and United States House of Representatives, beginning with the 1st United States Congress in 1789. Each state elects two senators to serve for six years in general elections, with their re-election staggered. Prior to the ratification of the Seventeenth Amendment in 1913, senators were elected by the Connecticut General Assembly. Each state elects varying numbers of members of the House, depending on population, to two-year terms. Connecticut has sent five members to the House in each congressional delegation since the 2000 United States census.
A total of 292 unique individuals have represented Connecticut in Congress; Connecticut has had 57 senators and 259 representatives, and 24 have served in both the House and the Senate. Nine women from Connecticut have served in the House, the first being Clare Booth Luce, Two African-Americans from Connecticut, Gary Franks and Jahana Hayes, have served in the House.
The current dean, or longest serving member, of the Connecticut delegation is Representative Rosa DeLauro of the , who has served in the House since 1991. She is the longest-serving House member in Connecticut history, and the second longest-serving member of Congress from Connecticut, behind Chris Dodd, who served 36 years combined in the House and Senate. Dodd is also Connecticut's longest-serving senator.
Current delegation
{| class="wikitable floatright" style="text-align: center;"
|+ Current U.S. senators from Connecticut
|-
! scope="rowgroup" rowspan=2 | <br/><br/>
{| class="wikitable"
! CPVI :
|-
|
|}
! scope="col" | Class I senator
! scope="col" | Class III senator
|- style="vertical-align: top;"
| frameless|upright=0.7|alt=Photograph of Chris Murphy, the current junior senator from Connecticut<br/>Chris Murphy<br/><br>
| frameless|upright=0.7|alt=Photograph of Richard Blumenthal, the current senior senator from Connecticut<br/>Richard Blumenthal<br/><br>
|-
! scope="row" | Party
|
|
|-
! scope="row" | Incumbent since
| January 3, 2013
| January 3, 2011
|}
Connecticut's current congressional delegation in the consists of its two senators and its five representatives, all of whom are Democrats. Connecticut has not had a Republican member of Congress for more than a decade, since Republican representative Chris Shays lost his race against Democrat Jim Himes in the state's 4th congressional district in 2008.
The current dean, or longest serving member, of the Connecticut delegation is Representative Rosa DeLauro of the , who has served in the House since 1991. She is the longest-serving House member in Connecticut history, and the second longest-serving member of Congress from Connecticut, behind Chris Dodd, who served 36 years in total. rated all districts in Connecticut as leaning Democratic.
United States Senate
Senators Oliver Ellsworth, William S. Johnson, and Roger Sherman were Founding Fathers. Ellsworth helped write the Judiciary Act of 1789, and later served as Chief Justice of the United States Supreme Court. Uriah Tracy served as president pro tempore of the Senate from May 1800 to November 1800, James Hillhouse served as president pro tempore from February 1801 to December 1801, Lafayette Sabine Foster served as president pro tempore from March 1865 to March 1867, and Frank Brandegee served as president pro tempore from May 1912 to March 1913. Senator Orville Platt, along with Nelson Aldrich, William Allison, and John Coit Spooner, formed "The Senate Four", a group of powerful legislators who controlled much of the Senate's operations. Platt also helped draft the Platt Amendment. Senator Joseph Lieberman was the Democratic nominee for vice president in 2000.
Senators are elected every six years depending on their class, with each senator serving a six-year term, and elections for senators occurring every two years, rotating through each class such that each election, around one-third of the seats in the Senate are up for election. Connecticut's senators are elected in classes I and III. Currently, Connecticut is represented in the Senate by Richard Blumenthal and Chris Murphy.
{| class="wikitable sticky-header" style="text-align:center"
|+Senators from Connecticut
|-
! scope="col" colspan="2" | Class I senator
! scope="col" | Congress
! scope="col" colspan="2" | Class III senator
|- align=center style="height:2em"
| rowspan="5"|Oliver Ellsworth (PA)
|
! scope="row" | 1st (1789–1791)
| rowspan="5" style="background: #D3D3D3"|
| rowspan="2"|William Samuel<br/>Johnson (PA)
|- align=center style="height:1.25em"
| rowspan="6" style="background: #D3D3D3"|
! scope="row" rowspan="2"|2nd (1791–1793)
|- align=center style="height:1.25em"
| rowspan="2"|Roger Sherman (PA)
|- align=center style="height:1.25em"
! scope="row" rowspan="2"|3rd (1793–1795)
|- align=center style="height:2em"
| | Stephen Mix Mitchell (PA)
|- align=center style="height:2em"
| |Oliver Ellsworth (F)
! scope="row" rowspan="2"|4th (1795–1797)
| rowspan="4" |
||Jonathan Trumbull Jr. (F)
|- align=center style="height:1.5em"
| rowspan="9"|James Hillhouse (F)
| rowspan="7"|Uriah Tracy (F)
|- align=center style="height:2em"
| rowspan="3" |
! scope="row" |5th (1797–1799)
|- align=center style="height:2em"
! scope="row" | 6th (1799–1801)
|- align=center style="height:2em"
! scope="row" |7th (1801–1803)
| rowspan="3" style="background: #D3D3D3"|
|- align=center style="height:2em"
| rowspan="4" style="background: #D3D3D3"|
! scope="row" |8th (1803–1805)
|- align=center style="height:2em"
! scope="row" |9th (1805–1807)
|- align=center style="height:1.25em"
! scope="row" rowspan="2"|10th (1807–1809)
| rowspan="5" |
|- align=center style="height:1.25em"
| rowspan="5"|Chauncey Goodrich (F)
|- align=center style="height:1.25em"
| rowspan="5" |
! scope="row" rowspan="2"|11th (1809–1811)
|- align=center style="height:1.25em"
| rowspan="7"|Samuel W. Dana (F)
|- align=center style="height:2em"
! scope="row" |12th (1811–1813)
|- align=center style="height:1.25em"
! scope="row" rowspan="2"|13th (1813–1815)
| rowspan="4" style="background: #D3D3D3"|
|- align=center style="height:1.25em"
| rowspan="3"|David Daggett (F)
|- align=center style="height:2em"
| rowspan="3" style="background: #D3D3D3"|
! scope="row" | 14th (1815–1817)
|- align=center style="height:2em"
! scope="row" |15th (1817–1819)
|- align=center style="height:2em"
! scope="row" |16th (1819–1821)
| rowspan="4" |
| rowspan="4"|James Lanman (DR)
|- align=center style="height:2em"
| rowspan="2"|Elijah Boardman (DR)
| rowspan="4" |
! scope="row" |17th (1821–1823)
|- align=center style="height:1.25em"
! scope="row" rowspan="2"|18th (1823–1825)
|- align=center style="height:2em"
| |Henry W. Edwards (DR)
|- align=center style="height:2em"
| |Henry W. Edwards (J)
! scope="row" |19th (1825–1827)
| rowspan="3" style="background: #D3D3D3"|
| rowspan="3"|Calvin Willey (NR)
|- align=center style="height:2em"
| rowspan="3"|Samuel A. Foot (NR)
| rowspan="3" style="background: #D3D3D3"|
! scope="row" |20th (1827–1829)
|- align=center style="height:2em"
! scope="row" |21st (1829–1831)
|- align=center style="height:2em"
! scope="row" |22nd (1831–1833)
| rowspan="4" |
| rowspan="4"|Gideon Tomlinson (NR)
|- align=center style="height:2em"
| rowspan="2"|Nathan Smith (NR)
| rowspan="4" |
! scope="row" |23rd (1833–1835)
|- align=center style="height:1.25em"
! scope="row" rowspan="2"|24th (1835–1837)
|- align=center style="height:2em"
| |John Milton Niles (J)
|- align=center style="height:2em"
||John Milton Niles (D)
! scope="row" |25th (1837–1839)
| rowspan="4" style="background: #D3D3D3"|
| rowspan="4"|Perry Smith (D)
|- align=center style="height:2em"
||Thaddeus Betts (W)
| rowspan="4" style="background: #D3D3D3"|
! scope="row" rowspan="2"|26th (1839–1841)
|- align=center style="height:1.25em"
| rowspan="5"|Jabez W. Huntington (W)
|- align=center style="height:2em"
! scope="row" |27th (1841–1843)
|- align=center style="height:2em"
! scope="row" |28th (1843–1845)
| rowspan="4" |
| rowspan="4"|John Milton Niles (D)
|- align=center style="height:2em"
| rowspan="4" |
! scope="row" |29th (1845–1847)
|- align=center style="height:1.25em"
! scope="row" rowspan="2"|30th (1847–1849)
|- align=center style="height:1.25em"
| rowspan="2"|Roger Sherman<br/>Baldwin (W)
|- align=center style="height:2em"
! scope="row" |31st (1849–1851)
| rowspan="4" style="background: #D3D3D3"|
| rowspan="3"|Truman Smith (W)
|- align=center style="height:2em"
| rowspan="4"|Isaac Toucey (D)
| rowspan="4" style="background: #D3D3D3"|
! scope="row" |32nd (1851–1853)
|- align=center style="height:1.25em"
! scope="row" rowspan="2"|33rd (1853–1855)
|- align=center style="height:2em"
| |Francis Gillette (FS)
|- align=center style="height:2em"
! scope="row" |34th (1855–1857)
| rowspan="3" |
| rowspan="3" |Lafayette S. Foster (O)
|- align=center style="height:2em"
| rowspan=6|James Dixon (R)
| rowspan="3" |
! scope="row" |35th (1857–1859)
|- align=center style="height:2em"
! scope="row" |36th (1859–1861)
|- align=center style="height:2em"
! scope="row" |37th (1861–1863)
| rowspan="3" style="background: #D3D3D3"|
| rowspan="3" |Lafayette S. Foster (R)
|- align=center style="height:2em"
| rowspan="3" style="background: #D3D3D3"|
! scope="row" |38th (1863–1865)
|- align=center style="height:2em"
! scope="row" |39th (1865–1867)
|- align=center style="height:2em"
! scope="row" |40th (1867–1869)
| rowspan="3" |
| rowspan="3" |Orris S. Ferry (R)
|- align=center style="height:2em"
| rowspan="3"|William A.<br/>Buckingham (R)
| rowspan="4" |
! scope="row" |41st (1869–1871)
|- align=center style="height:2em"
! scope="row" |42nd (1871–1873)
|- align=center style="height:1.25em"
! scope="row" rowspan="2"|43rd (1873–1875)
| rowspan="6" style="background: #D3D3D3"|
| rowspan="2" |Orris S. Ferry (LR)
|- align=center style="height:1.25em"
| rowspan="6"|William W. Eaton (D)
|- align=center style="height:2em"
| rowspan="5" style="background: #D3D3D3"|
! scope="row" rowspan="3"|44th (1875–1877)
||Orris S. Ferry (R)
|- align=center style="height:2em"
||James E. English (D)
|- align=center style="height:1.25em"
| rowspan="2"|William Barnum (D)
|- align=center style="height:2em"
! scope="row" |45th (1877–1879)
|- align=center style="height:2em"
! scope="row" |46th (1879–1881)
| rowspan="3" |
| rowspan="13"|Orville H. Platt (R)
|- align=center style="height:2em"
| rowspan="12"|Joseph R. Hawley (R)
| rowspan="3" |
! scope="row" |47th (1881–1883)
|- align=center style="height:2em"
! scope="row" |48th (1883–1885)
|- align=center style="height:2em"
! scope="row" |49th (1885–1887)
| rowspan="3" style="background: #D3D3D3"|
|- align=center style="height:2em"
| rowspan="3" style="background: #D3D3D3"|
! scope="row" |50th (1887–1889)
|- align=center style="height:2em"
! scope="row" |51st (1889–1891)
|- align=center style="height:2em"
! scope="row" |52nd (1891–1893)
| rowspan="3" |
|- align=center style="height:2em"
| rowspan="3" |
! scope="row" |53rd (1893–1895)
|- align=center style="height:2em"
! scope="row" |54th (1895–1897)
|- align=center style="height:2em"
! scope="row" |55th (1897–1899)
| rowspan="3" style="background: #D3D3D3"|
|- align=center style="height:2em"
| rowspan="3" style="background: #D3D3D3"|
! scope="row" |56th (1899–1901)
|- align=center style="height:2em"
! scope="row" |57th (1901–1903)
|- align=center style="height:2em"
! scope="row" |58th (1903–1905)
| rowspan="3" |
|- align=center style="height:2em"
| rowspan="3"|Morgan Bulkeley (R)
| rowspan="3" |
! scope="row" |59th (1905–1907)
| rowspan="10"|Frank B. Brandegee (R)
|- align=center style="height:2em"
! scope="row" |60th (1907–1909)
|- align=center style="height:2em"
! scope="row" |61st (1909–1911)
| rowspan="3" style="background: #D3D3D3"|
|- align=center style="height:2em"
| rowspan="10"|George P. McLean (R)
| rowspan="3" style="background: #D3D3D3"|
! scope="row" |62nd (1911–1913)
|- align=center style="height:2em"
! scope="row" |63rd (1913–1915)
|- align=center style="height:2em"
! scope="row" |64th (1915–1917)
| rowspan="3" |
|- align=center style="height:2em"
| rowspan="3" |
! scope="row" |65th (1917–1919)
|- align=center style="height:2em"
! scope="row" |66th (1919–1921)
|- align=center style="height:2em"
! scope="row" |67th (1921–1923)
| rowspan="4" style="background: #D3D3D3"|
|- align=center style="height:1.25em"
| rowspan="4" style="background: #D3D3D3"|
! scope="row" rowspan="2"|68th (1923–1925)
|- align=center style="height:1.25em"
| rowspan="5"|Hiram Bingham III (R)
|- align=center style="height:2em"
! scope="row" |69th (1925–1927)
|- align=center style="height:2em"
! scope="row" |70th (1927–1929)
| rowspan="3" |
|- align=center style="height:2em"
| rowspan="3"|Frederic C. Walcott (R)
| rowspan="3" |
! scope="row" |71st (1929–1931)
|- align=center style="height:2em"
! scope="row" |72nd (1931–1933)
|- align=center style="height:2em"
! scope="row" |73rd (1933–1935)
| rowspan="3" style="background: #D3D3D3"|
| rowspan="3"|Augustine Lonergan (D)
|- align=center style="height:2em"
| rowspan="6"|Francis T. Maloney (D)
| rowspan="3" style="background: #D3D3D3"|
! scope="row" |74th (1935–1937)
|- align=center style="height:2em"
! scope="row" |75th (1937–1939)
|- align=center style="height:2em"
! scope="row" |76th (1939–1941)
| rowspan="3" |
| rowspan="3"|John A. Danaher (R)
|- align=center style="height:2em"
| rowspan="5" |
! scope="row" |77th (1941–1943)
|- align=center style="height:2em"
! scope="row" |78th (1943–1945)
|- align=center style="height:1.25em"
! scope="row" rowspan="3"|79th (1945–1947)
| rowspan="6" style="background: #D3D3D3"|
| rowspan="7"|Brien McMahon (D)
|- align=center style="height:2em"
||Thomas C. Hart (R)
|- align=center style="height:1.25em"
| rowspan="3"|Raymond E. Baldwin (R)
|- align=center style="height:2em"
| rowspan="6" style="background: #D3D3D3"|
! scope="row" |80th (1947–1949)
|- align=center style="height:1.25em"
! scope="row" rowspan="2"|81st (1949–1951)
|- align=center style="height:1.25em"
| rowspan="4"|William Benton (D)
|- align=center style="height:1.25em"
! scope="row" rowspan="3"|82nd (1951–1953)
| rowspan="5" |
|- align=center style="height:2em"
||William A. Purtell (R)
|- align=center style="height:1.25em"
| rowspan="6"|Prescott Bush (R)
|- align=center style="height:2em"
| rowspan="3"|William A. Purtell (R)
| rowspan="3" |
! scope="row" |83rd (1953–1955)
|- align=center style="height:2em"
! scope="row" |84th (1955–1957)
|- align=center style="height:2em"
! scope="row" | 85th (1957–1959)
| rowspan="3" style="background: #D3D3D3"|
|- align=center style="height:2em"
| rowspan="6"|Thomas J. Dodd (D)
| rowspan="3" style="background: #D3D3D3"|
! scope="row" |86th (1959–1961)
|- align=center style="height:2em"
! scope="row" |87th (1961–1963)
|- align=center style="height:2em"
! scope="row" |88th (1963–1965)
| rowspan="3" |
| rowspan="9"|Abraham Ribicoff (D)
|- align=center style="height:2em"
| rowspan="3" |
! scope="row" |89th (1965–1967)
|- align=center style="height:2em"
! scope="row" | 90th (1967–1969)
|- align=center style="height:2em"
! scope="row" | 91st (1969–1971)
| rowspan="3" style="background: #D3D3D3"|
|- align=center style="height:2em"
| rowspan="9"|Lowell Weicker (R)
| rowspan="3" style="background: #D3D3D3"|
! scope="row" |92nd (1971–1973)
|- align=center style="height:2em"
! scope="row" |93rd (1973–1975)
|- align=center style="height:2em"
! scope="row" | 94th (1975–1977)
| rowspan="3" |
|- align=center style="height:2em"
| rowspan="3" |
! scope="row" |95th (1977–1979)
|- align=center style="height:2em"
! scope="row" |96th (1979–1981)
|- align=center style="height:2em"
! scope="row" |97th (1981–1983)
| rowspan="3" style="background: #D3D3D3"|
| rowspan="15"|Chris Dodd (D)
|- align=center style="height:2em"
| rowspan="3" style="background: #D3D3D3"|
! scope="row" |98th (1983–1985)
|- align=center style="height:2em"
! scope="row" | 99th (1985–1987)
|- align=center style="height:2em"
! scope="row" | 100th (1987–1989)
| rowspan="3" |
|- align=center style="height:2em"
| rowspan="9"|Joe Lieberman (D)
| rowspan="3" |
! scope="row" | 101st (1989–1991)
|- align=center style="height:2em"
! scope="row" |102nd (1991–1993)
|- align=center style="height:2em"
! scope="row" |103rd (1993–1995)
| rowspan="3" style="background: #D3D3D3"|
|- align=center style="height:2em"
| rowspan="3" style="background: #D3D3D3"|
! scope="row" |104th (1995–1997)
|- align=center style="height:2em"
! scope="row" |105th (1997–1999)
|- align=center style="height:2em"
! scope="row" |106th (1999–2001)
| rowspan="3" |
|- align=center style="height:2em"
| rowspan="3" |
! scope="row" |107th (2001–2003)
|- align=center style="height:2em"
! scope="row" |108th (2003–2005)
|- align=center style="height:2em"
! scope="row" |109th (2005–2007)
| rowspan="3" style="background: #D3D3D3"|
|- align=center style="height:2em"
| rowspan=3|Joe Lieberman (CfL)
| rowspan="3" style="background: #D3D3D3"|
! scope="row" |110th (2007–2009)
|- align=center style="height:2em"
! scope="row" |111th (2009–2011)
|- align=center style="height:2em"
! scope="row" |112th (2011–2013)
| rowspan="3" |
| rowspan=8|Richard Blumenthal (D)
|- align=center style="height:2em"
| rowspan=7|Chris Murphy (D)
| rowspan="3" |
! scope="row" | 113th (2013–2015)
|- align=center style="height:2em"
! scope="row" | 114th (2015–2017)
|- align=center style="height:2em"
! scope="row" | 115th (2017–2019)
| rowspan="3" style="background: #D3D3D3"|
|- align=center style="height:2em"
| rowspan="3" style="background: #D3D3D3"|
! scope="row" | 116th (2019–2021)
|- align=center style="height:2em"
! scope="row" | 117th (2021–2023)
|- align=center style="height:2em"
! scope="row" |118th (2023–2025)
| rowspan="2" |
|- align=center style="height:2em"
| rowspan="1" |
! scope="row" |119th (2025–2027)
|}
United States House of Representatives
John Q. Tilson served as the House Majority Leader for the Republican party from 1925 to 1931. Barbara Kennelly was the first woman to become the Democratic chief deputy whip. Ella T. Grasso later became the first female governor elected in the United States.
From 1789 to 1837, representatives from Connecticut were elected from Connecticut's at-large congressional district, which was subsequently replaced with Connecticut's congressional districts. Connecticut has sent five members to the House in each congressional delegation since the 2000 United States census. Districts are redrawn every ten years, after data from the US Census is collected.
| rowspan=9 | Roger Griswold (F)
| rowspan=4 | Nathaniel Smith (F)
| rowspan=2 | Zephaniah Swift (F)
| | Uriah Tracy (F)
| rowspan=11 | Samuel W. Dana (F)
|- style="height:1.5em"
! scope="row" rowspan=2 | (1797–1799)
| rowspan=2 | John Allen (F)
|- style="height:1.5em"
| rowspan=3 | William Edmond (F)
| rowspan=2 | Jonathan Brace (F)
|- style="height:1.5em"
! scope="row" rowspan=2 | (1799–1801)
| rowspan=2 | Elizur Goodrich (F)
| rowspan=12 | John Davenport (F)
|- style="height:1.5em"
| rowspan=4 | John Cotton<br/>Smith (F)
|- style="height:2.5em"
! scope="row" | (1801–1803)
| rowspan=10 | Benjamin Tallmadge (F)
| rowspan=3 | Calvin Goddard (F)
| | Elias Perkins (F)
|- style="height:2.5em"
! scope="row" | (1803–1805)
| | Simeon Baldwin (F)
|- style="height:1.5em"
! scope="row" rowspan=2 | (1805–1807)
| rowspan=10 | Jonathan O. Moseley (F)
|- style="height:2em"
| | Theodore Dwight (F)
| rowspan=9 | Timothy Pitkin (F)
| rowspan=7 | Lewis B. Sturges (F)
|- style="height:2.5em"
! scope="row" | (1807–1809)
| rowspan=6 | Epaphroditus<br/>Champion (F)
|- style="height:1.5em"
! scope="row" rowspan=2 | (1809–1811)
|- style="height:2em"
| | Ebenezer Huntington (F)
|- style="height:2.5em"
! scope="row" | (1811–1813)
| rowspan=3 | Lyman Law (F)
|- style="height:2.5em"
! scope="row" | (1813–1815)
|- style="height:2.5em"
! scope="row" | (1815–1817)
|- style="height:2em"
! scope="row" rowspan=2 | (1817–1819)
| rowspan=2 | Thomas Scott<br/>Williams (F)
| | Uriel Holmes (F)
| rowspan=2 | Samuel B.<br/>Sherwood (F)
| rowspan=2 | Nathaniel Terry (F)
| rowspan=2 | Ebenezer Huntington (F)
|- style="height:2em"
| | Sylvester Gilbert (DR)
|- style="height:2.5em"
! scope="row" | (1819–1821)
| rowspan="2" | Gideon Tomlinson (DR)
| | James Stevens (DR)
| | Samuel A. Foot (DR)
| rowspan=2 | John Russ (DR)
| | Jonathan O. Moseley (DR)
| | Elisha Phelps (DR)
| rowspan=2 | Henry W. Edwards (DR)
|- style="height:2.5em"
! scope="row" | (1821–1823)
| | Daniel Burrows (DR)
| | Ansel Sterling (DR)
| | Noyes Barber (DR)
| | Ebenezer Stoddard (DR)
|}
1823–1843: 6 seats
Following the 1820 census, Connecticut was apportioned six seats.
{| class=wikitable style="text-align:center"
|+ Members of the House of Representatives from Connecticut from 1823 to 1843
! scope="col" rowspan=2 | Congress
! scope="colgroup" colspan=6 | Elected statewide on a general ticket from
|- style="height:2em"
! scope="col" | 1st seat
! scope="col" | 2nd seat
! scope="col" | 3rd seat
! scope="col" | 4th seat
! scope="col" | 5th seat
! scope="col" | 6th seat
|- style="height:2.5em"
! scope="row" | (1823–1825)
| |Gideon Tomlinson (DR)
| | Lemuel Whitman (DR)
| |Ansel Sterling (DR)
| | Samuel A. Foot (DR)
| |Noyes Barber (DR)
| |Ebenezer Stoddard (DR)
|- style="height:2.5em"
! scope="row" | (1825–1827)
| | Gideon Tomlinson (NR)
| rowspan=2 | John Baldwin (NR)
| rowspan=4 | Ralph I. Ingersoll (NR)
| rowspan=2 | Orange Merwin (NR)
| rowspan=6 | Noyes Barber (NR)
| rowspan=2 | Elisha Phelps (NR)
|- style="height:2.5em"
! scope="row" | (1827–1829)
| | David Plant (NR)
|- style="height:2.5em"
! scope="row" | (1829–1831)
| rowspan=3 | William W. Ellsworth (NR)
| rowspan=3 | Jabez W. Huntington (NR)
| rowspan=4 | Ebenezer Young (NR)
| rowspan=2 | William L. Storrs (NR)
|- style="height:2.5em"
! scope="row" | (1831–1833)
|- style="height:2em"
! scope="row" rowspan=2 | (1833–1835)
| |Samuel A. Foot (NR)
| rowspan=2 | Samuel Tweedy (NR)
|- style="height:2em"
| | Joseph Trumbull (NR)
| | Phineas Miner (NR)
| | Ebenezer Jackson Jr. (NR)
|- style="height:2em"
! scope="row" rowspan=2 | (1835–1837)
| rowspan=2 | Isaac Toucey (J)
| rowspan=2 | Samuel Ingham (J)
| rowspan=2 | Elisha Haley (J)
| | Zalmon Wildman (J)
| rowspan=2 | Lancelot Phelps (J)
| | Andrew T. Judson (J)
|- style="height:2em"
| | Thomas T. Whittlesey (J)
| | Orrin Holt (J)
|- style="height:2em"
! scope="col" rowspan=2 | Congress
! scope="colgroup" colspan=6 | District
|- style="height:2em"
! scope="col" |
! scope="col" |
! scope="col" |
! scope="col" |
! scope="col" |
! scope="col" |
|- style="height:2.5em"
! scope="row" | (1837–1839)
| | Isaac Toucey (D)
| | Samuel Ingham (D)
| | Elisha Haley (D)
| | Thomas T. Whittlesey (D)
| | Lancelot Phelps (D)
| | Orrin Holt (D)
|- style="height:2em"
! scope="row" rowspan=2 | (1839–1841)
| rowspan=3 | Joseph Trumbull (W)
| | William L. Storrs (W)
| rowspan=3 | Thomas W. Williams (W)
| rowspan=3 | Thomas B. Osborne (W)
| rowspan=3 | Truman Smith (W)
| rowspan=3 | John H. Brockway (W)
|- style="height:1.5em"
| rowspan=2 | William W. Boardman (W)
|- style="height:2.5em"
! scope="row" | (1841–1843)
|}
1843–1903: 4 seats
Following the 1840 census, Connecticut was apportioned four seats.
{| class="wikitable sticky-header" style="text-align:center"
|+ Members of the House of Representatives from Connecticut from 1843 to 1903
|- style="height:2.5em"
! scope="col" | Congress
! scope="col" |
! scope="col" |
! scope="col" |
! scope="col" |
|- style="height:2.5em"
! scope="row" | (1843–1845)
| | Thomas H. Seymour (D)
| | John Stewart (D)
| | George S. Catlin (D)
| | Samuel Simons (D)
|- style="height:2.5em"
! scope="row" | (1845–1847)
| rowspan=2 | James Dixon (W)
| rowspan=2 | Samuel Dickinson<br/>Hubbard (W)
| rowspan=2 | John A. Rockwell (W)
| rowspan=2 | Truman Smith (W)
|- style="height:2.5em"
! scope="row" | (1847–1849)
|- style="height:2.5em"
! scope="row" | (1849–1851)
| | Loren P. Waldo (D)
| |Walter Booth (FS)
| rowspan=2 | Chauncey Fitch<br/>Cleveland (D)
| | Thomas B. Butler (W)
|- style="height:2.5em"
! scope="row" | (1851–1853)
| | Charles Chapman (W)
| rowspan=2 | Colin M. Ingersoll (D)
| rowspan=2 | Origen S. Seymour (D)
|- style="height:2.5em"
! scope="row" | (1853–1855)
| | James T. Pratt (D)
| | Nathan Belcher (D)
|- style="height:2.5em"
! scope="row" | (1855–1857)
| | Ezra Clark Jr. (KN)
| | John Woodruff (KN)
| | Sidney Dean (KN)
| | William W. Welch (KN)
|- style="height:2.5em"
! scope="row" | (1857–1859)
| | Ezra Clark Jr. (R)
| | Samuel Arnold (D)
| | Sidney Dean (R)
| | William D. Bishop (D)
|- style="height:2.5em"
! scope="row" | (1859–1861)
| rowspan=2 | Dwight Loomis (R)
| | John Woodruff (R)
| rowspan=2 | Alfred A. Burnham (R)
| | Orris S. Ferry (R)
|- style="height:2.5em"
! scope="row" | (1861–1863)
| rowspan=2 | James E. English (D)
| | George Catlin Woodruff (D)
|- style="height:2.5em"
! scope="row" | (1863–1865)
| rowspan=2 | Henry C. Deming (R)
| rowspan=2 | Augustus Brandegee (R)
| rowspan=2 | John Henry Hubbard (R)
|- style="height:2.5em"
! scope="row" | (1865–1867)
| | Samuel L. Warner (R)
|- style="height:2.5em"
! scope="row" | (1867–1869)
| | Richard D. Hubbard (D)
| | Julius Hotchkiss (D)
| rowspan=6 | Henry H.<br/>Starkweather (R)
| rowspan=6 | William Barnum (D)
|- style="height:2.5em"
! scope="row" | (1869–1871)
| rowspan=2 | Julius L. Strong (R)
| rowspan=4 | Stephen Kellogg (R)
|- style="height:1.5em"
! scope="row" rowspan=2 | (1871–1873)
|- style="height:1.5em"
| rowspan=2 | Joseph R. Hawley (R)
|- style="height:2.5em"
! scope="row" | (1873–1875)
|- style="height:1.5em"
! scope="row" rowspan=2 | (1875–1877)
| rowspan=3 | George M. Landers (D)
| rowspan=5 | James Phelps (D)
|- style="height:1.5em"
| rowspan=6 | John T. Wait (R)
| rowspan=2 | Levi Warner (D)
|- style="height:2.5em"
! scope="row" | (1877–1879)
|- style="height:2.5em"
! scope="row" | (1879–1881)
| | Joseph R. Hawley (R)
| rowspan=2 | Frederick Miles (R)
|- style="height:2.5em"
! scope="row" | (1881–1883)
| | John R. Buck (R)
|- style="height:2.5em"
! scope="row" | (1883–1885)
| | William W. Eaton (D)
| rowspan=2 | Charles L. Mitchell (D)
| rowspan=2 | Edward W. Seymour (D)
|- style="height:2.5em"
! scope="row" | (1885–1887)
| | John R. Buck (R)
|- style="height:2.5em"
! scope="row" | (1887–1889)
| | Robert J. Vance (D)
| | Carlos French (D)
| rowspan=8 | Charles Addison<br/>Russell (R)
| | Miles T. Granger (D)
|- style="height:2.5em"
! scope="row" | (1889–1891)
| | William E. Simonds (R)
| rowspan=2 | Washington F. Willcox (D)
| | Frederick Miles (R)
|- style="height:2.5em"
! scope="row" | (1891–1893)
| rowspan=2 | Lewis Sperry (D)
| rowspan=2 | Robert E. De Forest (D)
|- style="height:2.5em"
! scope="row" | (1893–1895)
| | James P. Pigott (D)
|- style="height:2.5em"
! scope="row" | (1895–1897)
| rowspan="5" | E. Stevens Henry (R)
| rowspan="5" | Nehemiah D. Sperry (R)
| rowspan="5" | Ebenezer J. Hill (R)
|- style="height:2.5em"
! scope="row" | (1897–1899)
|- style="height:2.5em"
! scope="row" | (1899–1901)
|- style="height:1.5em"
! scope="row" rowspan=2 | (1901–1903)
|- style="height:2em"
| | Frank B. Brandegee (R)
|}
1903–1933: 5 seats
Following the 1900 census, Connecticut was apportioned five seats. The fifth seat was established at-large from 1901 to 1911, when it was converted into a fifth district via a redistricting plan.
{| class=wikitable style="text-align:center"
|- style="height:2.5em"
|+ Members of the House of Representatives from Connecticut from 1903 to 1933
! scope="col" | Congress
! scope="col" |
! scope="col" |
! scope="col" |
! scope="col" |
! scope="col" |
|- style="height:2.5em"
! scope="row" | (1903–1905)
| rowspan="6" |E. Stevens Henry (R)
| rowspan="5" |Nehemiah D.<br/>Sperry (R)
| rowspan="2" |Frank B.<br/>Brandegee (R)
| rowspan="6" |Ebenezer J. Hill (R)
| rowspan=4 | George L. Lilley (R)
|- style="height:1.5em"
! scope="row" rowspan=2 | (1905–1907)
|- style="height:1.5em"
| rowspan=4 | Edwin W. Higgins (R)
|- style="height:2.5em"
! scope="row" | (1907–1909)
|- style="height:2.5em"
! scope="row" | (1909–1911)
| rowspan=2 | John Q. Tilson (R)
|- style="height:2.5em"
! scope="row" | (1911–1913)
| | Thomas L. Reilly (D)
|- style="height:2em"
! scope="row" rowspan=2 | (1913–1915)
| rowspan=2 | Augustine Lonergan (D)
| rowspan=2 | Bryan F. Mahan (D)
| rowspan=2 | Thomas L. Reilly (D)
| rowspan=2 | Jeremiah<br/>Donovan (D)
! scope="col" |
|- style="height:2.5em"
| | William Kennedy (D)
|- style="height:2.5em"
! scope="row" | (1915–1917)
| | P. Davis Oakey (R)
| rowspan=11 | Richard P.<br/>Freeman (R)
| rowspan=11 | John Q. Tilson (R)
| rowspan=2 | Ebenezer J. Hill (R)
| rowspan=5 | James P. Glynn (R)
|- style="height:1.5em"
! scope="row" rowspan=2 | (1917–1919)
| rowspan=3 | Augustine Lonergan (D)
|- style="height:1.5em"
| rowspan=8 | Schuyler Merritt (R)
|- style="height:2.5em"
! scope="row" | (1919–1921)
|- style="height:2.5em"
! scope="row" | (1921–1923)
| rowspan=6 | E. Hart Fenn (R)
|- style="height:2.5em"
! scope="row" | (1923–1925)
| | Patrick B. O'Sullivan (D)
|- style="height:2.5em"
! scope="row" | (1925–1927)
| rowspan=3 | James P. Glynn (R)
|- style="height:2.5em"
! scope="row" | (1927–1929)
|- style="height:1.5em"
! scope="row" rowspan=2 | (1929–1931)
|- style="height:1.5em"
| rowspan="2" | Edward W. Goss (R)
|- style="height:2.5em"
! scope="row" |
| | Augustine Lonergan (D)
| | William L. Tierney (D)
|}
1933–2003: 6 seats
Following the 1930 census, Connecticut was apportioned six seats. The sixth seat was established at-large from 1931 to 1964, when it was converted into a sixth district via a reapportioning plan.
{| class="wikitable sticky-header-multi sortable" style="text-align:center"
|+ Members of the House of Representatives from Connecticut from 1933 to 2003
! scope="col" rowspan=2 class=unsortable | Congress
! scope="colgroup" colspan=6 | District
|- style="height:2em"
! scope="col" class=unsortable |
! scope="col" class=unsortable |
! scope="col" class=unsortable |
! scope="col" class=unsortable |
! scope="col" class=unsortable |
! scope="col" class=unsortable |
|- style="height:2.5em"
! scope="row" |
| rowspan=3 | Herman Kopplemann (D)
| rowspan=2 | William L. Higgins (R)
| | Francis T.<br/>Maloney (D)
| rowspan=2 | Schuyler Merritt (R)
| | Edward W.<br/>Goss (R)
| | Charles Montague<br/>Bakewell (R)
|- style="height:2.5em"
! scope="row" |
| rowspan=5 | James A.<br/>Shanley (D)
| rowspan=4 | J. Joseph<br/>Smith (D)
| rowspan=2 | William M. Citron (D)
|- style="height:2.5em"
! scope="row" |
| | William J. Fitzgerald (D)
| | Alfred N. Phillips (D)
|- style="height:2.5em"
! scope="row" |
| | William J. Miller (R)
| | Thomas R. Ball (R)
| | Albert E. Austin (R)
| | B. J. Monkiewicz (R)
|- style="height:1.25em"
! scope="row" rowspan=2 |
| rowspan=2 | Herman Kopplemann (D)
| rowspan=2 | William J. Fitzgerald (D)
| rowspan=2 | Le Roy D. Downs (D)
| rowspan=2 | Lucien J. Maciora (D)
|- style="height:1.25em"
| rowspan=3 | Joseph E.<br/>Talbot (R)
|- style="height:2.5em"
! scope="row" |
| | William J. Miller (R)
| | John D. McWilliams (R)
| | Ranulf Compton (R)
| rowspan=2 | Clare Boothe<br/>Luce (R)
| | B. J. Monkiewicz (R)
|- style="height:2.5em"
! scope="row" |
| | Herman Kopplemann (D)
| | Chase Woodhouse (D)
| | James P. Geelan (D)
| | Joseph F. Ryter (D)
|- style="height:2.5em"
! scope="row" |
| | William J. Miller (R)
| | Horace Seely-Brown (R)
| | Ellsworth Foote (R)
| rowspan=2 | John Davis<br/>Lodge (R)
| rowspan=6 | James T.<br/>Patterson (R)
| rowspan=6 | Antoni Sadlak (R)
|- style="height:2.5em"
! scope="row" |
| rowspan=2 | Abraham Ribicoff (D)
| | Chase Woodhouse (D)
| rowspan=2 | John A. McGuire (D)
|- style="height:2.5em"
! scope="row" |
| rowspan=4 | Horace Seely-Brown (R)
| rowspan=4 | Albert P.<br/>Morano (R)
|- style="height:2.5em"
! scope="row" |
| rowspan=2 | Thomas J. Dodd (D)
| rowspan=3 | Albert W.<br/>Cretella (R)
|- style="height:2.5em"
! scope="row" |
|- style="height:2.5em"
! scope="row" |
| | Edwin H. May Jr. (R)
|- style="height:2.5em"
! scope="row" |
| rowspan=8 | Emilio Daddario (D)
| | Chester B. Bowles (D)
| rowspan=13 | Robert Giaimo (D)
| | Donald J. Irwin (D)
| rowspan=9 | John S.<br/>Monagan (D)
| rowspan=2 | Frank Kowalski (D)
|- style="height:2.5em"
! scope="row" |
| | Horace Seely-Brown (R)
| rowspan=2 | Abner W. Sibal (R)
|- style="height:2.5em"
! scope="row" |
| rowspan=5 | William St. Onge (D)
| | Bernard Grabowski (D)
|- style="height:2em"
! scope="row" rowspan=2 |
| rowspan=3 | Donald J. Irwin (D)
!
|- style="height:2.5em"
| | Bernard Grabowski (D)
|- style="height:2.5em"
! scope="row" |
| rowspan=3 | Thomas Meskill (R)
|- style="height:1.25em"
! scope="row" rowspan=2 |
| rowspan=2 | Lowell Weicker (R)
|- style="height:1.25em"
| rowspan=3 | Robert H. Steele (R)
|- style="height:2.5em"
! scope="row" |
| rowspan=6 | William R. Cotter (D)
| rowspan=10 | Stewart<br/>McKinney (R)
| rowspan=2 | Ella Grasso (D)
|- style="height:2.5em"
! scope="row" |
| rowspan=3 | Ronald A.<br/>Sarasin (R)
|- style="height:2.5em"
! scope="row" |
| rowspan=3 | Chris Dodd (D)
| rowspan=5 | Toby Moffett (D)
|- style="height:2.5em"
! scope="row" |
|- style="height:2.5em"
! scope="row" |
| rowspan=4 | William R.<br/>Ratchford (D)
|- style="height:1.25em"
! scope="row" rowspan=2 |
| rowspan=12 | Sam Gejdenson (D)
| rowspan=2 | Larry DeNardis (R)
|- style="height:1.25em"
| rowspan=10 | Barbara B. Kennelly (D)
|- style="height:2.5em"
! scope="row" |
| rowspan=5 | Bruce Morrison (D)
| rowspan=11 | Nancy Johnson (R)
|- style="height:2.5em"
! scope="row" |
| rowspan=4 | John G.<br/>Rowland (R)
|- style="height:1.25em"
! scope="row" rowspan=2 |
|- style="height:1.25em"
| rowspan="8" | Chris Shays (R)
|- style="height:2.5em"
! scope="row" |
|- style="height:2.5em"
! scope="row" |
| rowspan="6" | Rosa DeLauro (D)
| rowspan=3 | Gary Franks (R)
|- style="height:2.5em"
! scope="row" |
|- style="height:2.5em"
! scope="row" |
|- style="height:2.5em"
! scope="row" |
| rowspan=3 | James H.<br/>Maloney (D)
|- style="height:2.5em"
! scope="row" |
| rowspan="2" | John B. Larson (D)
|- style="height:2.5em"
! scope="row" |
| | Rob Simmons (R)
|}
2003–present: 5 seats
Following the 2000 census, Connecticut was apportioned five seats.
{| class=wikitable style="text-align:center"
|- style="height:2.5em"
|+ Members of the House of Representatives from Connecticut from 2003 to present
! scope="col" | Congress
! scope="col" |
! scope="col" |
! scope="col" |
! scope="col" |
! scope="col" |
|- style="height:2.5em"
! scope="row" | (2003–2005)
| rowspan="12" | John B. Larson (D)
| rowspan="2" | Rob Simmons (R)
| rowspan="12" | Rosa DeLauro (D)
| rowspan="3" | Chris Shays (R)
| rowspan=2 | Nancy Johnson (R)
|- style="height:2.5em"
! scope="row" | (2005–2007)
|- style="height:2.5em"
! scope="row" | (2007–2009)
| rowspan=10 | Joe Courtney (D)
| rowspan=3 | Chris Murphy (D)
|- style="height:2.5em"
! scope="row" | (2009–2011)
| rowspan=9 | Jim Himes (D)
|- style="height:2.5em"
! scope="row" | (2011–2013)
|- style="height:2.5em"
! scope="row" | (2013–2015)
| rowspan=3 | Elizabeth Esty (D)
|- style="height:2.5em"
! scope="row" | (2015–2017)
|- style="height:2.5em"
! scope="row" | (2017–2019)
|- style="height:2.5em"
! scope="row" | (2019–2021)
| rowspan=4 | Jahana Hayes (D)
|- style="height:2.5em"
! scope="row" | (2021–2023)
|- style="height:2.5em"
! scope="row" | (2023–2025)
|- style="height:2.5em"
! scope="row" | (2025–2027)
|}
See also
- List of United States congressional districts
- Connecticut's congressional districts
- Political party strength in Connecticut