350px|thumb|Maryland's congressional districts since 2023
These are tables of congressional delegations from Maryland in the United States House of Representatives and the United States Senate.
The current dean of the Maryland delegation is Representative and former House Majority Leader Steny Hoyer (MD-5), having served in the House since 1981.
U.S. House of Representatives
Current members
List of members, their terms in office, district boundaries, and the district political ratings according to the CPVI. The delegation has 8 members: 7 Democrats and 1 Republican.
1789–1793: Six seats
{| class=wikitable style="text-align:center" style="text-align:center"
|- style="height:2.5em"
! Congress !! !! !! !! !! !!
|- style="height:2em"
| <br/>
| | Michael Jenifer<br/>Stone (AA)
| | Joshua Seney (AA)
| | Benjamin Contee (AA)
| | William Smith (AA)
| | George Gale (PA)
| | Daniel Carroll (PA)
|- style="height:2em"
| rowspan=2 | <br/>(1791–1793)
| rowspan=2 | Philip Key (C/PA)
| | Joshua Seney (C/AA)
| | William Pinkney (C/PA)
| rowspan=2 | Samuel Sterett (C/AA)
| rowspan=2 | William Vans<br/>Murray (C/PA)
| rowspan=2 | Upton<br/>Sheredine (C/AA)
|- style="height:2em"
| | William Hindman (PA)
| | John Francis Mercer (AA)
|}
1793–1803: Eight seats
Maryland gained two representatives, up to eight.
{| class=wikitable style="text-align:center"
|- style="height:2.5em"
! Congress !! !! !! !! !! !! !! !!
|- style="height:2em"
| rowspan=2 | <br/>
| rowspan=2 | George Dent (PA)
| | John Francis<br/>Mercer (AA)
| | Uriah Forrest (PA)
| rowspan=2 | Thomas Sprigg (AA)
| rowspan=2 | Samuel Smith (AA)
| rowspan=2 | Gabriel Christie (AA)
| rowspan=2 | William Hindman (PA)
| rowspan=2 | William Vans<br/>Murray (PA)
|- style="height:2em"
| | Gabriel Duvall (AA)
| | Benjamin Edwards (PA)
|- style="height:2em"
| rowspan=2 | <br/>(1795–1797)
| rowspan=4 | George Dent (F)
| | Gabriel Duvall (DR)
| | Jeremiah Crabb (F)
| rowspan=2 | Thomas Sprigg (DR)
| rowspan=6 | Samuel Smith (DR)
| rowspan=2 | Gabriel Christie (DR)
| rowspan=3 | William Hindman (F)
| rowspan=2 | William Vans<br/>Murray (F)
|- style="height:2em"
| rowspan=2 | Richard Sprigg Jr. (DR)
| rowspan=3 | William Craik (F)
|- style="height:2em"
| <br/>(1797–1799)
| rowspan=2 | George Baer Jr. (F)
| | William Matthews (F)
| rowspan=4 | John Dennis (F)
|- style="height:2em"
| <br/>(1799–1801)
| | John Chew Thomas (F)
| | Gabriel Christie (DR)
| rowspan=3 | Joseph Hopper<br/>Nicholson (DR)
|- style="height:2em"
| rowspan=2 | <br/>(1801–1803)
| rowspan=2 | John Campbell (F)
| | Richard Sprigg Jr. (DR)
| rowspan=2 | Thomas Plater (DR)
| rowspan=2 | Daniel Hiester (DR)
| rowspan=2 | John Archer (DR)
|- style="height:2em"
| | Walter Bowie (DR)
|}
1803–1833: Nine seats
Maryland gained one representative, up to nine. The fifth district had two representatives: one from Baltimore City, and the other from Baltimore County, Maryland.
{| class=wikitable style="text-align:center"
! rowspan=2 class=small | Congress
! rowspan=2 |
! rowspan=2 |
! rowspan=2 |
! rowspan=2 |
! colspan=2 |
! rowspan=2 |
! rowspan=2 |
! rowspan=2 |
|- style="height:2em"
! Seat A
! Seat B
|- style="height:2em"
| rowspan=2 | <br/>
| rowspan=7 | John Campbell (F)
| rowspan=2 | Walter Bowie (DR)
| rowspan=2 | Thomas Plater (DR)
| | Daniel Hiester (DR)
| rowspan=5 | William McCreery (DR)
| rowspan=7 | Nicholas R.<br/>Moore (DR)
| rowspan=4 | John Archer (DR)
| rowspan=3 | Joseph Hopper<br/>Nicholson (DR)
| rowspan=2 | John Dennis (F)
|- style="height:2em"
| rowspan=5 | Roger Nelson (DR)
|- style="height:2em"
| rowspan=2 | <br/>(1805–1807)
| rowspan=2 | Leonard Covington (DR)
| rowspan=2 | Patrick Magruder (DR)
| rowspan=10 | Charles<br/>Goldsborough (F)
|- style="height:2em"
| rowspan=2 | Edward Lloyd (DR)
|- style="height:2em"
| <br/>(1807–1809)
| rowspan=3 | Archibald Van<br/>Horne (DR)
| rowspan=5 | Philip Barton<br/>Key (F)
| rowspan=4 | John Montgomery (DR)
|- style="height:2em"
| rowspan=2 | <br/>(1809–1811)
| rowspan=5 | Alexander McKim (DR)
| | John Brown (DR)
|- style="height:2em"
| rowspan=4 | Samuel Ringgold (DR)
| rowspan=6 | Robert Wright (DR)
|- style="height:2em"
| rowspan=2 | <br/>(1811–1813)
| rowspan=6 | Philip Stuart (F)
| rowspan=3 | Joseph Kent (DR)
| rowspan=2 | Peter Little (DR)
|- style="height:2em"
| rowspan=4 | Stevenson Archer (DR)
|- style="height:2em"
| <br/>(1813–1815)
| rowspan=2 | Alexander C.<br/>Hanson (F)
| rowspan=2 | Nicholas R.<br/>Moore (DR)
|- style="height:2em"
| rowspan=2 | <br/>(1815–1817)
| rowspan=3 | John C.<br/>Herbert (F)
| rowspan=2 | George Baer Jr. (F)
| | William Pinkney (DR)
|- style="height:2em"
| rowspan=2 | George Peter (F)
| rowspan=6 | Peter Little (DR)
| rowspan=4 | Samuel Smith (DR)
|- style="height:2em"
| <br/>(1817–1819)
| rowspan=2 | Samuel Ringgold (DR)
| | Philip Reed (DR)
| rowspan=2 | Thomas Culbreth (DR)
| rowspan=4 | Thomas Bayly (F)
|- style="height:2em"
| <br/>(1819–1821)
| rowspan=4 | Raphael Neale (F)
| rowspan=4 | Joseph Kent (DR)
| | Henry Ridgely<br/>Warfield (DR)
| | Stevenson Archer (DR)
|- style="height:2em"
| rowspan=2 | <br/>(1821–1823)
| rowspan=3 | Henry Ridgely<br/>Warfield (F)
| rowspan=2 | John Nelson (DR)
| | Jeremiah Cosden (DR)
| rowspan=2 | Robert Wright (DR)
|- style="height:2em"
| rowspan=2 | Isaac McKim (DR)
| | Philip Reed (DR)
|- style="height:2em"
| <br/>(1823–1825)
| | John Lee (F)
| | George Edward<br/>Mitchell (DR)
| | William<br/>Hayward Jr. (DR)
| | John S. Spence (DR)
|- style="height:2em"
| rowspan=2 | <br/>(1825–1827)
| rowspan=4 | Clement Dorsey (NR)
| | Joseph Kent (NR)
| rowspan=2 | George Peter (J)
| rowspan=2 | Thomas Contee<br/>Worthington (J)
| rowspan=3 | Peter Little (NR)
| rowspan=3 | John Barney (NR)
| rowspan=2 | George Edward<br/>Mitchell (J)
| rowspan=3 | John Leeds Kerr (NR)
| rowspan=2 | Robert N. Martin (NR)
|- style="height:2em"
| rowspan=2 | John Crompton<br/>Weems (J)
|- style="height:2em"
| <br/>(1827–1829)
| rowspan=4 | George C.<br/>Washington (NR)
| rowspan=2 | Michael Sprigg (J)
| | Levin Gale (J)
| | Ephraim King<br/>Wilson (NR)
|- style="height:2em"
| <br/>(1829–1831)
| rowspan=3 | Benedict Joseph<br/>Semmes (NR)
| | Elias Brown (J)
| rowspan=3 | Benjamin Chew<br/>Howard (J)
| rowspan=2 | George Edward<br/>Mitchell (J)
| | Richard Spencer (J)
| | Ephraim King<br/>Wilson (J)
|- style="height:2em"
| rowspan=2 | <br/>(1831–1833)
| rowspan=2 | Daniel Jenifer (NR)
| rowspan=2 | Francis Thomas (J)
| rowspan=2 | John T. H.<br/>Worthington (J)
| rowspan=2 | John Leeds Kerr (NR)
| rowspan=2 | John S. Spence (NR)
|- style="height:2em"
| | Charles S. Sewall (J)
|}
1833–1843: Eight seats
Maryland lost one representative, down to eight. The fourth district had two representatives from 1835 to 1843.
{| class=wikitable style="text-align:center"
|- style="height:2.5em"
! Congress !! !! !! !! !! !! !! !!
|- style="height:2em"
| <br/>
| | Littleton Purnell<br/>Dennis (NR)
| | Richard Bennett<br/>Carmichael (J)
| | James Turner (J)
| | James P. Heath (J)
| | Isaac McKim (J)
| | William Cost<br/>Johnson (NR)
| | Francis Thomas (J)
| | John Truman<br/>Stoddert (J)
|- style="height:2em"
! rowspan=2 class=small | Congress
! rowspan=2 |
! rowspan=2 |
! rowspan=2 |
! colspan=2 |
! rowspan=2 |
! rowspan=2 |
! rowspan=2 |
|- style="height:2em"
! Seat A
! Seat B
|- style="height:2em"
| <br/>
| | John N.<br/>Steele (NR)
| | James Pearce (NR)
| | James P. Heath (J)
| | Benjamin Chew<br/>Howard (J)
| | Isaac McKim (J)
| | George C.<br/>Washington (NR)
| | Francis Thomas (J)
| | Daniel Jenifer (NR)
|- style="height:2em"
| rowspan=2 | <br/>(1837–1839)
| rowspan=3 | John Dennis (W)
| rowspan=2 | James Pearce (W)
| rowspan=3 | John T. H.<br/>Worthington (D)
| rowspan=2 | Benjamin Chew<br/>Howard (D)
| | Isaac McKim (D)
| rowspan="5" | William Cost<br/>Johnson (W)
| rowspan=3 | Francis Thomas (D)
| rowspan=3 | Daniel Jenifer (W)
|- style="height:2em"
| | John P. Kennedy (W)
|- style="height:2em"
| <br/>(1839–1841)
| | Philip Francis<br/>Thomas (D)
| | Solomon Hillen Jr. (D)
| | James Carroll (D)
|- style="height:2em"
| rowspan="2" |<br/>(1841–1843)
| rowspan="2" |Isaac D.<br/>Jones (W)
| rowspan="2" |James Pearce (W)
| |James Wray<br/>Williams (D)
| rowspan="2" |Alexander Randall (W)
| rowspan="2" |John P. Kennedy (W)
| rowspan="2" |John Thomson<br/>Mason (D)
| rowspan="2" |Augustus Rhodes<br/>Sollers (W)
|- style="height:2em"
| | Charles S. Sewall (D)
|}
1843–1863: Six seats
Maryland lost two representatives, down to six.
{| class=wikitable style="text-align:center"
|- style="height:2.5em"
! Congress !! !! !! !! !! !!
|- style="height:2em"
| <br/>
| | John Causin (W)
| | Francis Brengle (W)
| | John Wethered (W)
| | John P. Kennedy (W)
| | Jacob A. Preston (W)
| | Thomas A. Spence (W)
|- style="height:2em"
| <br/>(1845–1847)
| rowspan=2 | John G.<br/>Chapman (W)
| | Thomas J. Perry (D)
| rowspan=2 | Thomas Watkins<br/>Ligon (D)
| | William F. Giles (D)
| | Albert Constable (D)
| | Edward H. C. Long (W)
|- style="height:2em"
| <br/>(1847–1849)
| | James Dixon Roman (W)
| rowspan=2 | Robert Milligan<br/>McLane (D)
| rowspan=3 | Alexander Evans (W)
| | John W. Crisfield (W)
|- style="height:2em"
| <br/>(1849–1851)
| rowspan=2 | Richard Bowie (W)
| rowspan=2 | William T.<br/>Hamilton (D)
| rowspan=2 | Edward Hammond (D)
| | John Bozman Kerr (W)
|- style="height:2em"
| <br/>(1851–1853)
| | Thomas Yates<br/>Walsh (W)
| | Joseph S.<br/>Cottman (W)
|- style="height:2em"
| <br/>(1853–1855)
| | John Rankin<br/>Franklin (W)
| | Jacob Shower (D)
| | Joshua Van Sant (D)
| | William T.<br/>Hamilton (D)
| | Henry May (D)
| | Augustus Rhodes<br/>Sollers (W)
|- style="height:2em"
| <br/>(1855–1857)
| rowspan=3 | James Augustus<br/>Stewart (D)
| rowspan=2 | James B.<br/>Ricaud (KN)
| rowspan=3 | J. Morrison<br/>Harris (KN)
| rowspan=3 | Henry Winter<br/>Davis (KN)
| | Henry William<br/>Hoffman (KN)
| rowspan=2 | Thomas Fielder<br/>Bowie (D)
|- style="height:2em"
| <br/>(1857–1859)
| rowspan=2 | Jacob M.<br/>Kunkel (D)
|- style="height:2em"
| <br/>(1859–1861)
| | Edwin H.<br/>Webster (KN)
| | George W.<br/>Hughes (D)
|- style="height:2em"
| <br/>(1861–1863)
| | John W. Crisfield (U)
| | Edwin H.<br/>Webster (U)
| | Cornelius Leary (U)
| | Henry May (U)
| | Francis Thomas (U)
| | Charles Benedict<br/>Calvert (U)
|}
1863–1873: Five seats
Maryland lost one representative, down to five.
{| class=wikitable style="text-align:center"
|- style="height:2.5em"
! Congress !! !! !! !! !!
|- style="height:2.5em"
|
| | John Creswell (U)
| rowspan=2 | Edwin H.<br/>Webster (U)
| | Henry Winter Davis (U)
| rowspan=3 | Francis Thomas (U)
| rowspan=3 | Benjamin G.<br/>Harris (D)
|- style="height:1.5em"
| rowspan=2 | (1865–1867)
| rowspan=3 | Hiram McCullough (D)
| rowspan=2 | Charles E. Phelps (U)
|- style="height:2em"
| | John L. Thomas Jr. (U)
|- style="height:2.5em"
| (1867–1869)
| rowspan=3 | Stevenson Archer (D)
| | Charles E. Phelps (D)
| | Francis Thomas (R)
| rowspan=2 | Frederick Stone (D)
|- style="height:2.5em"
| (1869–1871)
| rowspan=2 | Samuel Hambleton (D)
| rowspan=2 | Thomas Swann (D)
| | Patrick Hamill (D)
|- style="height:2.5em"
| (1871–1873)
| | John Ritchie (D)
| | William Matthews<br/>Merrick (D)
|}
1873–1953: Six seats
Maryland gained one representative, up to six for the next 80 years.
{| class="wikitable sticky-header" style="text-align:center"
|- style="height:2.5em"
! Congress !! !! !! !! !! !!
|- style="height:2.5em"
|
| | Ephraim K.<br/>Wilson II (D)
| | Stevenson Archer (D)
| rowspan=2 | William J. O'Brien (D)
| rowspan=3 | Thomas Swann (D)
| | William Albert (R)
| | Lloyd Lowndes Jr. (R)
|- style="height:2.5em"
|
| | Philip F. Thomas (D)
| rowspan=2 | Charles B.<br/>Roberts (D)
| rowspan=3 | Eli Jones Henkle (D)
| rowspan=2 | William Walsh (D)
|- style="height:2.5em"
|
| rowspan=2 | Daniel Maynadier<br/>Henry (D)
| rowspan=2 | William Kimmel (D)
|- style="height:2.5em"
|
| rowspan=3 | J. Frederick<br/>C. Talbott (D)
| rowspan=2 | Robert Milligan<br/>McLane (D)
| rowspan=2 | Milton Urner (R)
|- style="height:2.5em"
|
| rowspan=2 | George W.<br/>Covington (D)
| rowspan=2 | Fetter Schrier<br/>Hoblitzell (D)
| | Andrew G. Chapman (D)
|- style="height:2.5em"
|
| rowspan=3 | John Van Lear<br/>Findlay (D)
| | Hart B. Holton (R)
| rowspan=6 | Louis E. McComas (R)
|- style="height:2em"
| rowspan=2 |
| rowspan=5 | Charles H.<br/>Gibson (D)
| rowspan=3 | Frank T.<br/>Shaw (D)
| | William H. Cole (D)
| rowspan=4 | Barnes Compton (D)
|- style="height:1.5em"
| rowspan="9" | Harry W. Rusk (D)
|- style="height:2.5em"
|
| | Isidor Rayner (D)
|- style="height:1.5em"
| rowspan=2 |
| rowspan="4" | Herman Stump (D)
| rowspan=2 | Henry Stockbridge Jr. (R)
|- style="height:2em"
| | Sydney E. Mudd I (R)
|- style="height:2em"
| rowspan="2" |
| | Henry Page (D)
| rowspan="4" | Isidor Rayner (D)
| rowspan="3" | Barnes Compton (D)
| rowspan="4" | William McMahon<br/>McKaig (D)
|- style="height:2em"
| |John B. Brown (D)
|- style="height:2em"
| rowspan="2" |
| | Robert F. Brattan (D)
| rowspan="2" | J. Frederick<br/>C. Talbott (D)
|- style="height:2em"
| | Winder Laird Henry (D)
| rowspan="2" | Charles E.<br/>Coffin (R)
|- style="height:2.5em"
|
| | Joshua W. Miles (D)
| rowspan="4" | William Benjamin<br/>Baker (R)
| | John K. Cowen (D)
| | George L. Wellington (R)
|- style="height:2.5em"
|
| | Isaac A. Barber (R)
| | William Booze (R)
| | W. W. McIntire (R)
| rowspan="8" | Sydney E.<br/>Mudd I (R)
| | John McDonald (R)
|- style="height:2em"
| rowspan="2" |
| | John Walter Smith (D)
| rowspan="5" | Frank C.<br/>Wachter (R)
| rowspan="2" | James William<br/>Denny (D)
| rowspan="7" | George A.<br/>Pearre (R)
|- style="height:2em"
| | Josiah Kerr (R)
|- style="height:2.5em"
|
| rowspan="2" | William Humphreys<br/>Jackson (R)
| | Albert Blakeney (R)
| | Charles R. Schirm (R)
|- style="height:2.5em"
|
| rowspan="7" | J. Frederick<br/>C. Talbott (D)
| | James William<br/>Denny (D)
|- style="height:2.5em"
|
| | Thomas A. Smith (D)
| rowspan=3 | John Gill Jr. (D)
|- style="height:2.5em"
| (1907–1909)
| | William Humphreys<br/>Jackson (R)
| | Harry B. Wolf (D)
|- style="height:2.5em"
| (1909–1911)
| rowspan=3 | J. Harry Covington (D)
| | John Kronmiller (R)
|- style="height:2em"
| (1911–1913)
| | George Konig (D)
| rowspan=11 | J. Charles<br/>Linthicum (D)
| | Thomas Parran Sr. (R)
| rowspan=3 | David John Lewis (D)
|- style="height:2.5em"
| (1913–1915)
| rowspan=4 | Charles Pearce<br/>Coady (D)
| | Frank O. Smith (D)
|- style="height:2.5em"
| (1915–1917)
| rowspan=2 | Jesse Price (D)
| rowspan=5 | Sydney E.<br/>Mudd II (R)
|- style="height:2.5em"
| (1917–1919)
| rowspan=2 | Carville Benson (D)
| rowspan=7 | Frederick Nicholas<br/>Zihlman (R)
|- style="height:2.5em"
| (1919–1921)
| | William N. Andrews (R)
|- style="height:2.5em"
| (1921–1923)
| rowspan=9 | Thomas Alan<br/>Goldsborough (D)
| | Albert Blakeney (R)
| rowspan=3 | John Philip Hill (R)
|- style="height:2.5em"
| (1923–1925)
| rowspan=2 | Millard Tydings (D)
|- style="height:2.5em"
| (1925–1927)
| rowspan=7 | Stephen Warfield<br/>Gambrill (D)
|- style="height:2.5em"
| (1927–1929)
| | William Purington<br/>Cole Jr. (D)
| rowspan=6 | Vincent L. Palmisano (D)
|- style="height:2.5em"
| (1929–1931)
| | Linwood Clark (R)
|- style="height:2.5em"
| (1931–1933)
| rowspan=7 | William Purington<br/>Cole Jr. (D)
| rowspan=4 | David John Lewis (D)
|- style="height:2.5em"
| (1933–1935)
| rowspan=4 | Ambrose Jerome<br/>Kennedy (D)
|- style="height:2.5em"
| (1935–1937)
|- style="height:2.5em"
| (1937–1939)
|- style="height:2.5em"
| (1939–1941)
| rowspan=4 | David Jenkins Ward (D)
| rowspan=6 | Thomas<br/>D'Alesandro Jr. (D)
| rowspan=8 | Lansdale Ghiselin<br/>Sasscer (D)
| rowspan=2 | William D. Byron (D)
|- style="height:1.5em"
| rowspan=2 | (1941–1943)
| rowspan=2 | John Ambrose Meyer (D)
|- style="height:2em"
| | Katharine Byron (D)
|- style="height:2.5em"
| (1943–1945)
| rowspan=2 | Harry Streett<br/>Baldwin (D)
| | Daniel Ellison (R)
| rowspan=5 | J. Glenn Beall (R)
|- style="height:2.5em"
| (1945–1947)
| | Dudley Roe (D)
| rowspan=4 | George Hyde Fallon (D)
|- style="height:2.5em"
| (1947–1949)
| rowspan=3 | Edward Tylor Miller (R)
| | Hugh Meade (D)
|- style="height:2.5em"
| (1949–1951)
| | William P. Bolton (D)
| rowspan=2 | Edward Garmatz (D)
|- style="height:2.5em"
| (1951–1953)
| | James Devereux (R)
|}
1953–1963: Seven seats
Maryland gained one representative, up to seven.
{| class=wikitable style="text-align:center"
|- style="height:2.5em"
! Congress !! !! !! !! !! !! !!
|- style="height:2.5em"
|
| rowspan=3 | Edward Tylor<br/>Miller (R)
| rowspan=3 | James Devereux (R)
| rowspan=5 | Edward<br/>Garmatz (D)
| rowspan=5 | George Hyde<br/>Fallon (D)
| | Frank Small Jr. (R)
| rowspan=3 | DeWitt Hyde (R)
| rowspan=5 | Samuel Friedel (D)
|- style="height:2.5em"
| (1955–1957)
| rowspan=4 | Richard Lankford (D)
|- style="height:2.5em"
| (1957–1959)
|- style="height:2.5em"
| (1959–1961)
| rowspan=2 | Thomas Francis<br/>Johnson (D)
| rowspan=2 | Daniel Brewster (D)
| | John R. Foley (D)
|- style="height:2.5em"
| (1961–1963)
| | Charles Mathias (R)
|}
1963–present: Eight seats
Maryland gained one representative, up to eight. From 1963 through 1967, the eighth seat was elected at-large statewide. Starting in 1967, however, the state was redistricted and an eighth district was created.
{| class=wikitable style="text-align:center"
! rowspan=2 | Congress
! colspan=8 | District
|-
!
!
!
!
!
!
!
!
|- style="height:2.5em"
|
| rowspan=6 | Rogers Morton (R)
| rowspan=15 | Clarence Long (D)
| rowspan=7 | Edward<br/>Garmatz (D)
| rowspan=5 | George Hyde<br/>Fallon (D)
| | Richard Lankford (D)
| rowspan=4 | Charles Mathias (R)
| rowspan=5 | Samuel Friedel (D)
| rowspan=2 | Carlton R.<br/>Sickles (D)
|- style="height:2.5em"
| (1965–1967)
| rowspan=3 | Hervey Machen (D)
|- style="height:2em"
| rowspan=2 | (1967–1969)
!
|- style="height:2em"
| rowspan=7 | Gilbert Gude (R)
|- style="height:2.5em"
| (1969–1971)
| rowspan=5 | Lawrence Hogan (R)
| | J. Glenn Beall Jr. (R)
|- style="height:1.5em"
| rowspan=2 | (1971–1973)
| rowspan=2| Paul Sarbanes (D)
| rowspan=6 | Goodloe Byron (D)
| rowspan=11 | Parren Mitchell (D)
|- style="height:1.5em"
| rowspan=2| William O. Mills (R)
|- style="height:1.5em"
| rowspan=2 | (1973–1975)
| rowspan=3 | Paul Sarbanes (D)
| rowspan=9 | Marjorie Holt (R)
|- style="height:1.5em"
| rowspan=4 | Robert Bauman (R)
|- style="height:2.5em"
| (1975–1977)
| rowspan=4 | Gladys Spellman (D)
|- style="height:2.5em"
| (1977–1979)
| rowspan=6 | Barbara<br/>Mikulski (D)
| | Newton Steers (R)
|- style="height:2.5em"
| (1979–1981)
| rowspan=8 | Beverly Byron (D)
| rowspan=5 | Michael D.<br/>Barnes (D)
|- style="height:1.5em"
| rowspan=2 | (1981–1983)
| rowspan=6 | Roy Dyson (D)
|- style="height:1.5em"
| rowspan=26 | Steny Hoyer (D)
|- style="height:2.5em"
| (1983–1985)
|- style="height:2.5em"
| (1985–1987)
| rowspan=5 | Helen Delich<br/>Bentley (R)
|- style="height:2.5em"
| (1987–1989)
| rowspan=11 | Ben Cardin (D)
| rowspan=3 | Tom McMillen (D)
| rowspan=5 | Kweisi Mfume (D)
| rowspan=9 | Connie Morella (R)
|- style="height:2.5em"
| (1989–1991)
|- style="height:2.5em"
| (1991–1993)
| rowspan=11 | Wayne Gilchrest (R)
|- style="height:2.5em"
| (1993–1995)
| rowspan=9 | Albert Wynn (D)
| rowspan=12 | Roscoe Bartlett (R)
|- style="height:1.5em"
| rowspan=2 | (1995–1997)
| rowspan=5 | Bob Ehrlich (R)
|- style="height:1.5em"
| rowspan=14 | Elijah Cummings (D)
|- style="height:2.5em"
| (1997–1999)
|- style="height:2.5em"
| (1999–2001)
|- style="height:2.5em"
| (2001–2003)
|- style="height:2.5em"
|
| rowspan=13 | Dutch<br/>Ruppersberger<br/>(D)
| rowspan=8 | Chris<br/>Van Hollen (D)
|- style="height:2.5em"
| (2005–2007)
|- style="height:1.5em"
| rowspan=2 | (2007–2009)
| rowspan=11 | John Sarbanes (D)
|- style="height:1.5em"
| rowspan=5 | Donna Edwards (D)
|- style="height:2.5em"
| (2009–2011)
| | Frank Kratovil (D)
|- style="height:2.5em"
| (2011–2013)
| rowspan=9 | Andy Harris (R)
|- style="height:2.5em"
| (2013–2015)
| rowspan=3 | John Delaney (D)
|- style="height:2.5em"
| (2015–2017)
|- style="height:2.5em"
| (2017–2019)
| rowspan=4 | Anthony Brown (D)
| rowspan=6 | Jamie Raskin (D)
|- style="height:1.5em"
| rowspan= 2 | (2019–2021)
| rowspan=4 | David Trone (D)
|- style="height:1.5em"
| rowspan=4 | Kweisi Mfume (D)
|- style="height:2.5em"
| (2021–2023)
|- style="height:2.5em"
| (2023–2025)
| rowspan=2 | Glenn Ivey (D)
|- style="height:2.5em"
| (2025–2027)
| | Johnny Olszewski (D)
| | Sarah Elfreth (D)
| | April McClain Delaney (D)
|- style="height:2em"
! rowspan=2 | Congress
!
!
!
!
!
!
!
!
|-
! colspan=8 | District
|}
United States Senate
{| class="wikitable floatright" style="text-align: center;"
|-
! colspan=3 | Current U.S. senators from Maryland
|-
! rowspan=2 | <br/><br/>
{| class="wikitable"
! CPVI :
|-
|
|}
! Class I senator
! Class III senator
|- style="vertical-align: top;"
| frameless|151x151px<br/>Angela Alsobrooks<br/><br>
| x150px<br/>Chris Van Hollen<br/><br>
|-
! Party
|
|
|-
! Incumbent since
| January 3, 2025
| January 3, 2017
|}
The alternating grey and white boxes indicate the duration of six-year Senate terms.
{| class="wikitable sticky-header" style="text-align:center"
|- style="height:2em"
! colspan=2 | Class I senators
! Congress
! colspan=2 | Class III senators
|- style="height:2em"
| rowspan=2 | Charles Carroll (PA)
| bgcolor=#CCCCCC |
| (1789–1791)
| bgcolor=#CCCCCC rowspan=4 |
| rowspan=4 | John Henry (PA)
|- style="height:1.25em"
| rowspan=5 |
| rowspan=2 | (1791–1793)
|- style="height:1.25em"
| rowspan=2 | Richard Potts (PA)
|- style="height:2em"
| (1793–1795)
|- style="height:2em"
| | Richard Potts (F)
| rowspan=2 | (1795–1797)
| rowspan=6 |
| rowspan=3 | John Henry (F)
|- style="height:1.25em"
| rowspan=7 | John Eager Howard (F)
|- style="height:1.25em"
| bgcolor=#CCCCCC rowspan=6 |
| rowspan=2 | (1797–1799)
|- style="height:1.25em"
| rowspan=2 | James Lloyd (F)
|- style="height:1.25em"
| rowspan=2 | (1799–1801)
|- style="height:1.25em"
| rowspan=2 | William Hindman (F)
|- style="height:1.25em"
| rowspan=2 | (1801–1803)
| bgcolor=#CCCCCC rowspan=5 |
|- style="height:1.25em"
| rowspan=3 | Robert Wright (DR)
|- style="height:2em"
| rowspan=7 | Samuel Smith (DR)
| rowspan=4 |
| (1803–1805)
|- style="height:1.25em"
| rowspan=2 | (1805–1807)
|- style="height:1.25em"
| rowspan=4 | Philip Reed (DR)
|- style="height:2em"
| (1807–1809)
| rowspan=3 |
|- style="height:2em"
| bgcolor=#CCCCCC rowspan=3 |
| (1809–1811)
|- style="height:2em"
| (1811–1813)
|- style="height:2em"
| (1813–1815)
| bgcolor=#CCCCCC rowspan=4 |
| rowspan=4 | Robert Henry<br/>Goldsborough (F)
|- style="height:1.25em"
| | Robert Goodloe Harper (F)
| rowspan=5 |
| rowspan=2 | (1815–1817)
|- style="height:1.25em"
| rowspan=3 | Alexander C. Hanson (F)
|- style="height:2em"
| (1817–1819)
|- style="height:1.25em"
| rowspan=2 | (1819–1821)
| rowspan=5 |
| rowspan=5 | Edward Lloyd (DR)
|- style="height:1.25em"
| rowspan=2 | William Pinkney (DR)
|- style="height:1.25em"
| bgcolor=#CCCCCC rowspan=5 |
| rowspan=2 | (1821–1823)
|- style="height:1.25em"
| rowspan=2 | Samuel Smith (DR)
|- style="height:2em"
| (1823–1825)
|- style="height:1.25em"
| rowspan=5 | Samuel Smith (J)
| rowspan=2 | (1825–1827)
| bgcolor=#CCCCCC rowspan=4 |
| | Edward Lloyd (J)
|- style="height:1.25em"
| rowspan=5 | Ezekiel F. Chambers (NR)
|- style="height:2em"
| rowspan=3 |
| (1827–1829)
|- style="height:2em"
| (1829–1831)
|- style="height:2em"
| (1831–1833)
| rowspan=5 |
|- style="height:1.25em"
| rowspan=4 | Joseph Kent (NR)
| bgcolor=#CCCCCC rowspan=6 |
| rowspan=2 | (1833–1835)
|- style="height:1.25em"
| rowspan=2 | Robert Henry<br/>Goldsborough (NR)
|- style="height:1.25em"
| rowspan=2 | (1835–1837)
|- style="height:2em"
| | John S. Spence (NR)
|- style="height:2em"
| | Joseph Kent (W)
| rowspan=2 | (1837–1839)
| bgcolor=#CCCCCC rowspan=5 |
| rowspan=3 | John S. Spence (W)
|- style="height:1.25em"
| rowspan=5 | William Duhurst Merrick (W)
|- style="height:1.25em"
| rowspan=4 |
| rowspan=2| (1839–1841)
|- style="height:1.25em"
| rowspan=2 | John Leeds Kerr (W)
|- style="height:2em"
| (1841–1843)
|- style="height:2em"
| (1843–1845)
| rowspan=3 |
| rowspan="9" | James Pearce (W)
|- style="height:2em"
| rowspan=3 | Reverdy Johnson (W)
| bgcolor=#CCCCCC rowspan=5 |
| (1845–1847)
|- style="height:2em"
| (1847–1849)
|- style="height:1.25em"
| rowspan=3 | (1849–1851)
| bgcolor=#CCCCCC rowspan=5 |
|- style="height:2em"
| | David Stewart (W)
|- style="height:1.25em"
| rowspan="4" | Thomas Pratt (W)
|- style="height:2em"
| rowspan=3 |
| (1851–1853)
|- style="height:2em"
| (1853–1855)
|- style="height:2em"
| (1855–1857)
| rowspan=3 |
|- style="height:2em"
| rowspan=2 | Anthony Kennedy (KN)
| bgcolor=#CCCCCC rowspan=4 |
| (1857–1859)
| rowspan=3 | James Pearce (D)
|- style="height:2em"
| (1859–1861)
|- style="height:1.25em"
| rowspan=2 | Anthony Kennedy (U)
| rowspan=2 | (1861–1863)
| bgcolor=#CCCCCC rowspan=4 |
|- style="height:2em"
| | Thomas Holliday Hicks (U)
|- style="height:2em"
| | Reverdy Johnson (U)
| rowspan=4 |
| (1863–1865)
| | Thomas Holliday Hicks (UU)
|- style="height:2em"
| rowspan=2 | Reverdy Johnson (D)
| (1865–1867)
| | John Creswell (UU)
|- style="height:1.25em"
| rowspan=2 | (1867–1869)
| rowspan=4 |
| rowspan=4 | George Vickers (D)
|- style="height:2em"
| | William Pinkney Whyte (D)
|- style="height:2em"
| rowspan=3 | William T. Hamilton (D)
| bgcolor=#CCCCCC rowspan=3 |
| (1869–1871)
|- style="height:2em"
| (1871–1873)
|- style="height:2em"
| (1873–1875)
| bgcolor=#CCCCCC rowspan=3 |
| rowspan=3 | George R. Dennis (D)
|- style="height:2em"
| rowspan=3 | William Pinkney Whyte (D)
| rowspan=3 |
| (1875–1877)
|- style="height:2em"
| (1877–1879)
|- style="height:2em"
| (1879–1881)
| rowspan=3 |
| rowspan=3 | James Black Groome (D)
|- style="height:2em"
| rowspan=9 | Arthur P. Gorman (D)
| bgcolor=#CCCCCC rowspan=3 |
| (1881–1883)
|- style="height:2em"
| (1883–1885)
|- style="height:2em"
| (1885–1887)
| bgcolor=#CCCCCC rowspan=3 |
| rowspan=3 | Ephraim K. Wilson II (D)
|- style="height:2em"
| rowspan=3 |
| (1887–1889)
|- style="height:2em"
| (1889–1891)
|- style="height:2em"
| (1891–1893)
| rowspan=3 |
| rowspan=3 | Charles H. Gibson (D)
|- style="height:2em"
| bgcolor=#CCCCCC rowspan=3 |
| (1893–1895)
|- style="height:2em"
| (1895–1897)
|- style="height:2em"
| (1897–1899)
| bgcolor=#CCCCCC rowspan=3 |
| rowspan=3 | George L. Wellington (R)
|- style="height:2em"
| rowspan=3 | Louis E. McComas (R)
| rowspan=3 |
| (1899–1901)
|- style="height:2em"
| (1901–1903)
|- style="height:2em"
| (1903–1905)
| rowspan=5 |
| rowspan=2 | Arthur P. Gorman (D)
|- style="height:1.25em"
| rowspan=6 | Isidor Rayner (D)
| bgcolor=#CCCCCC rowspan=5 |
| rowspan=2 | (1905–1907)
|- style="height:1.25em"
| rowspan=2 | William Pinkney Whyte (D)
|- style="height:1.25em"
| rowspan=2 | (1907–1909)
|- style="height:1.25em"
| rowspan=9 | John Walter Smith (D)
|- style="height:2em"
| (1909–1911)
| bgcolor=#CCCCCC rowspan=5 |
|- style="height:1.25em"
| rowspan=5 |
| rowspan=2 | (1911–1913)
|- style="height:1.25em"
| rowspan=2 | William P. Jackson (R)
|- style="height:1.25em"
| rowspan=2 | (1913–1915)
|- style="height:1.25em"
| rowspan=2 | Blair Lee I (D)
|- style="height:2em"
| (1915–1917)
| rowspan=3 |
|- style="height:2em"
| rowspan=3 | Joseph I. France (R)
| bgcolor=#CCCCCC rowspan=3 |
| (1917–1919)
|- style="height:2em"
| (1919–1921)
|- style="height:2em"
| (1921–1923)
| bgcolor=#CCCCCC rowspan=3 |
| rowspan=3 | Ovington Weller (R)
|- style="height:2em"
| rowspan=3 | William Cabell Bruce (D)
| rowspan=3 |
| (1923–1925)
|- style="height:2em"
| (1925–1927)
|- style="height:2em"
| (1927–1929)
| rowspan=3 |
| rowspan=12 | Millard Tydings (D)
|- style="height:2em"
| rowspan=3 | Phillips Lee<br/>Goldsborough (R)
| bgcolor=#CCCCCC rowspan=3 |
| (1929–1931)
|- style="height:2em"
| (1931–1933)
|- style="height:2em"
| (1933–1935)
| bgcolor=#CCCCCC rowspan=3 |
|- style="height:2em"
| rowspan=6 | George L. P. Radcliffe (D)
| rowspan=3 |
| (1935–1937)
|- style="height:2em"
| (1937–1939)
|- style="height:2em"
| (1939–1941)
| rowspan=3 |
|- style="height:2em"
| bgcolor=#CCCCCC rowspan=3 |
| (1941–1943)
|- style="height:2em"
| (1943–1945)
|- style="height:2em"
| (1945–1947)
| bgcolor=#CCCCCC rowspan=3 |
|- style="height:2em"
| rowspan=3 | Herbert O'Conor (D)
| rowspan=3 |
| (1947–1949)
|- style="height:2em"
| (1949–1951)
|- style="height:2em"
| (1951–1953)
| rowspan=3 |
| rowspan=6 | John Marshall Butler (R)
|- style="height:2em"
| rowspan=6 | J. Glenn Beall (R)
| bgcolor=#CCCCCC rowspan=3 |
| (1953–1955)
|- style="height:2em"
| (1955–1957)
|- style="height:2em"
| (1957–1959)
| bgcolor=#CCCCCC rowspan=3 |
|- style="height:2em"
| rowspan=3 |
| (1959–1961)
|- style="height:2em"
| (1961–1963)
|- style="height:2em"
| (1963–1965)
| rowspan=3 |
| rowspan=3 | Daniel Brewster (D)
|- style="height:2em"
| rowspan=3 | Joseph Tydings (D)
| bgcolor=#CCCCCC rowspan=3 |
| (1965–1967)
|- style="height:2em"
| (1967–1969)
|- style="height:2em"
| (1969–1971)
| bgcolor=#CCCCCC rowspan=3 |
| rowspan=9 | Charles Mathias (R)
|- style="height:2em"
| rowspan=3 | J. Glenn Beall Jr. (R)
| rowspan=3 |
| (1971–1973)
|- style="height:2em"
| (1973–1975)
|- style="height:2em"
| (1975–1977)
| rowspan=3 |
|- style="height:2em"
| rowspan=15 | Paul Sarbanes (D)
| bgcolor=#CCCCCC rowspan=3 |
| (1977–1979)
|- style="height:2em"
| (1979–1981)
|- style="height:2em"
| (1981–1983)
| bgcolor=#CCCCCC rowspan=3 |
|- style="height:2em"
| rowspan=3 |
| (1983–1985)
|- style="height:2em"
| (1985–1987)
|- style="height:2em"
| (1987–1989)
| rowspan=3 |
| rowspan=15 | Barbara Mikulski (D)
|- style="height:2em"
| bgcolor=#CCCCCC rowspan=3 |
| (1989–1991)
|- style="height:2em"
| (1991–1993)
|- style="height:2em"
| (1993–1995)
| bgcolor=#CCCCCC rowspan=3 |
|- style="height:2em"
| rowspan=3 |
| (1995–1997)
|- style="height:2em"
| (1997–1999)
|- style="height:2em"
| (1999–2001)
| rowspan=3 |
|- style="height:2em"
| bgcolor=#CCCCCC rowspan=3 |
| (2001–2003)
|- style="height:2em"
| (2003–2005)
|- style="height:2em"
| (2005–2007)
| bgcolor=#CCCCCC rowspan=3 |
|- style="height:2em"
| rowspan=9 | Ben Cardin (D)
| rowspan=3 |
| (2007–2009)
|- style="height:2em"
| (2009–2011)
|- style="height:2em"
| (2011–2013)
| rowspan=3 |
|- style="height:2em"
|- style="height:2em"
| bgcolor=#CCCCCC rowspan=3 |
| (2013–2015)
|- style="height:2em"
| (2015–2017)
|- style="height:2em"
| (2017–2019)
| bgcolor=#CCCCCC rowspan=3 |
| rowspan=5 | Chris Van Hollen (D)
|- style="height:2em"
| rowspan=3 |
| (2019–2021)
|- style="height:2em"
| (2021–2023)
|- style="height:2em"
| (2023–2025)
| rowspan=2 |
|- style="height:2em"
| rowspan=1 | Angela Alsobrooks (D)
| bgcolor=#CCCCCC rowspan=1 |
| (2025–2027)
|}
Key
See also
- List of United States congressional districts
- Maryland's congressional districts
- Political party strength in Maryland