# United States congressional delegations from Connecticut

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, while none have served in the Senate. 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 3rd district, 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

Current U.S. senators from Connecticut :
| Connecticut CPVI (2022): D+7 | Class I senator | Class III senator |
| Connecticut CPVI (2022): D+7 | Chris Murphy (Junior senator) (Hartford) | Richard Blumenthal (Senior senator) (Greenwich) |
| Party | Democratic | Democratic |
| Incumbent since | January 3, 2013 | January 3, 2011 |
Connecticut's current congressional delegation in the 119th Congress 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 3rd district, 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.
As of August 2023, the Cook Partisan Voting Index, a determination of how strongly partisan a state is, ranked all districts and senate races in Connecticut as solidly Democratic, except for the 5th House district, currently represented by Jahana Hayes, which was ranked as leaning Republican.
Current U.S. representatives from Connecticut :
| District | Member (Residence) | Party | Incumbent since | CPVI (2022) |
| 1st | John B. Larson (East Hartford) | Democratic | January 3, 1999 | D+12 |
| 2nd | Joe Courtney (Vernon) | Democratic | January 3, 2007 | D+3 |
| 3rd | Rosa DeLauro (New Haven) | Democratic | January 3, 1991 | D+7 |
| 4th | Jim Himes (Cos Cob) | Democratic | January 3, 2009 | D+13 |
| 5th | Jahana Hayes (Wolcott) | Democratic | January 3, 2019 | D+3 |

## 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.
Connecticut for Lieberman (CfL)  Democratic (D)  Democratic-Republican (DR)  Federalist (F)  Free Soil (FS)  Jacksonian (J)  Liberal Republican (LR)  National Republican (NR)  Opposition (O)  Pro-Administration (PA)  Republican (R)  Whig (W)
Senators from Connecticut :
| Class I senator | Congress | Class III senator |
| Oliver Ellsworth (PA) | 1st (1789–1791) | William Samuel Johnson (PA) |
| Oliver Ellsworth (PA) | 2nd (1791–1793) | William Samuel Johnson (PA) |
| Oliver Ellsworth (PA) | 2nd (1791–1793) | Roger Sherman (PA) |
| Oliver Ellsworth (PA) | 3rd (1793–1795) | Roger Sherman (PA) |
| Oliver Ellsworth (PA) | 3rd (1793–1795) | Stephen Mix Mitchell (PA) |
| Oliver Ellsworth (F) | 4th (1795–1797) | Jonathan Trumbull Jr. (F) |
| James Hillhouse (F) | 4th (1795–1797) | Uriah Tracy (F) |
| James Hillhouse (F) | 5th (1797–1799) | Uriah Tracy (F) |
| James Hillhouse (F) | 6th (1799–1801) | Uriah Tracy (F) |
| James Hillhouse (F) | 7th (1801–1803) | Uriah Tracy (F) |
| James Hillhouse (F) | 8th (1803–1805) | Uriah Tracy (F) |
| James Hillhouse (F) | 9th (1805–1807) | Uriah Tracy (F) |
| James Hillhouse (F) | 10th (1807–1809) | Uriah Tracy (F) |
| James Hillhouse (F) | 10th (1807–1809) | Chauncey Goodrich (F) |
| James Hillhouse (F) | 11th (1809–1811) | Chauncey Goodrich (F) |
| Samuel W. Dana (F) | 11th (1809–1811) | Chauncey Goodrich (F) |
| Samuel W. Dana (F) | 12th (1811–1813) | Chauncey Goodrich (F) |
| Samuel W. Dana (F) | 13th (1813–1815) | Chauncey Goodrich (F) |
| Samuel W. Dana (F) | 13th (1813–1815) | David Daggett (F) |
| Samuel W. Dana (F) | 14th (1815–1817) | David Daggett (F) |
| Samuel W. Dana (F) | 15th (1817–1819) | David Daggett (F) |
| Samuel W. Dana (F) | 16th (1819–1821) | James Lanman (DR) |
| Elijah Boardman (DR) | 17th (1821–1823) | James Lanman (DR) |
| Elijah Boardman (DR) | 18th (1823–1825) | James Lanman (DR) |
| Henry W. Edwards (DR) | 18th (1823–1825) | James Lanman (DR) |
| Henry W. Edwards (J) | 19th (1825–1827) | Calvin Willey (NR) |
| Samuel A. Foot (NR) | 20th (1827–1829) | Calvin Willey (NR) |
| Samuel A. Foot (NR) | 21st (1829–1831) | Calvin Willey (NR) |
| Samuel A. Foot (NR) | 22nd (1831–1833) | Gideon Tomlinson (NR) |
| Nathan Smith (NR) | 23rd (1833–1835) | Gideon Tomlinson (NR) |
| Nathan Smith (NR) | 24th (1835–1837) | Gideon Tomlinson (NR) |
| John Milton Niles (J) | 24th (1835–1837) | Gideon Tomlinson (NR) |
| John Milton Niles (D) | 25th (1837–1839) | Perry Smith (D) |
| Thaddeus Betts (W) | 26th (1839–1841) | Perry Smith (D) |
| Jabez W. Huntington (W) | 26th (1839–1841) | Perry Smith (D) |
| Jabez W. Huntington (W) | 27th (1841–1843) | Perry Smith (D) |
| Jabez W. Huntington (W) | 28th (1843–1845) | John Milton Niles (D) |
| Jabez W. Huntington (W) | 29th (1845–1847) | John Milton Niles (D) |
| Jabez W. Huntington (W) | 30th (1847–1849) | John Milton Niles (D) |
| Roger Sherman Baldwin (W) | 30th (1847–1849) | John Milton Niles (D) |
| Roger Sherman Baldwin (W) | 31st (1849–1851) | Truman Smith (W) |
| Isaac Toucey (D) | 32nd (1851–1853) | Truman Smith (W) |
| Isaac Toucey (D) | 33rd (1853–1855) | Truman Smith (W) |
| Isaac Toucey (D) | 33rd (1853–1855) | Francis Gillette (FS) |
| Isaac Toucey (D) | 34th (1855–1857) | Lafayette S. Foster (O) |
| James Dixon (R) | 35th (1857–1859) | Lafayette S. Foster (O) |
| James Dixon (R) | 36th (1859–1861) | Lafayette S. Foster (O) |
| James Dixon (R) | 37th (1861–1863) | Lafayette S. Foster (R) |
| James Dixon (R) | 38th (1863–1865) | Lafayette S. Foster (R) |
| James Dixon (R) | 39th (1865–1867) | Lafayette S. Foster (R) |
| James Dixon (R) | 40th (1867–1869) | Orris S. Ferry (R) |
| William A. Buckingham (R) | 41st (1869–1871) | Orris S. Ferry (R) |
| William A. Buckingham (R) | 42nd (1871–1873) | Orris S. Ferry (R) |
| William A. Buckingham (R) | 43rd (1873–1875) | Orris S. Ferry (LR) |
| William W. Eaton (D) | 43rd (1873–1875) | Orris S. Ferry (LR) |
| William W. Eaton (D) | 44th (1875–1877) | Orris S. Ferry (R) |
| William W. Eaton (D) | 44th (1875–1877) | James E. English (D) |
| William W. Eaton (D) | 44th (1875–1877) | William Barnum (D) |
| William W. Eaton (D) | 45th (1877–1879) | William Barnum (D) |
| William W. Eaton (D) | 46th (1879–1881) | Orville H. Platt (R) |
| Joseph R. Hawley (R) | 47th (1881–1883) | Orville H. Platt (R) |
| Joseph R. Hawley (R) | 48th (1883–1885) | Orville H. Platt (R) |
| Joseph R. Hawley (R) | 49th (1885–1887) | Orville H. Platt (R) |
| Joseph R. Hawley (R) | 50th (1887–1889) | Orville H. Platt (R) |
| Joseph R. Hawley (R) | 51st (1889–1891) | Orville H. Platt (R) |
| Joseph R. Hawley (R) | 52nd (1891–1893) | Orville H. Platt (R) |
| Joseph R. Hawley (R) | 53rd (1893–1895) | Orville H. Platt (R) |
| Joseph R. Hawley (R) | 54th (1895–1897) | Orville H. Platt (R) |
| Joseph R. Hawley (R) | 55th (1897–1899) | Orville H. Platt (R) |
| Joseph R. Hawley (R) | 56th (1899–1901) | Orville H. Platt (R) |
| Joseph R. Hawley (R) | 57th (1901–1903) | Orville H. Platt (R) |
| Joseph R. Hawley (R) | 58th (1903–1905) | Orville H. Platt (R) |
| Morgan Bulkeley (R) | 59th (1905–1907) | Frank B. Brandegee (R) |
| Morgan Bulkeley (R) | 60th (1907–1909) | Frank B. Brandegee (R) |
| Morgan Bulkeley (R) | 61st (1909–1911) | Frank B. Brandegee (R) |
| George P. McLean (R) | 62nd (1911–1913) | Frank B. Brandegee (R) |
| George P. McLean (R) | 63rd (1913–1915) | Frank B. Brandegee (R) |
| George P. McLean (R) | 64th (1915–1917) | Frank B. Brandegee (R) |
| George P. McLean (R) | 65th (1917–1919) | Frank B. Brandegee (R) |
| George P. McLean (R) | 66th (1919–1921) | Frank B. Brandegee (R) |
| George P. McLean (R) | 67th (1921–1923) | Frank B. Brandegee (R) |
| George P. McLean (R) | 68th (1923–1925) | Frank B. Brandegee (R) |
| George P. McLean (R) | 68th (1923–1925) | Hiram Bingham III (R) |
| George P. McLean (R) | 69th (1925–1927) | Hiram Bingham III (R) |
| George P. McLean (R) | 70th (1927–1929) | Hiram Bingham III (R) |
| Frederic C. Walcott (R) | 71st (1929–1931) | Hiram Bingham III (R) |
| Frederic C. Walcott (R) | 72nd (1931–1933) | Hiram Bingham III (R) |
| Frederic C. Walcott (R) | 73rd (1933–1935) | Augustine Lonergan (D) |
| Francis T. Maloney (D) | 74th (1935–1937) | Augustine Lonergan (D) |
| Francis T. Maloney (D) | 75th (1937–1939) | Augustine Lonergan (D) |
| Francis T. Maloney (D) | 76th (1939–1941) | John A. Danaher (R) |
| Francis T. Maloney (D) | 77th (1941–1943) | John A. Danaher (R) |
| Francis T. Maloney (D) | 78th (1943–1945) | John A. Danaher (R) |
| Francis T. Maloney (D) | 79th (1945–1947) | Brien McMahon (D) |
| Thomas C. Hart (R) | 79th (1945–1947) | Brien McMahon (D) |
| Raymond E. Baldwin (R) | 79th (1945–1947) | Brien McMahon (D) |
| Raymond E. Baldwin (R) | 80th (1947–1949) | Brien McMahon (D) |
| Raymond E. Baldwin (R) | 81st (1949–1951) | Brien McMahon (D) |
| William Benton (D) | 81st (1949–1951) | Brien McMahon (D) |
| William Benton (D) | 82nd (1951–1953) | Brien McMahon (D) |
| William Benton (D) | 82nd (1951–1953) | William A. Purtell (R) |
| William Benton (D) | 82nd (1951–1953) | Prescott Bush (R) |
| William A. Purtell (R) | 83rd (1953–1955) | Prescott Bush (R) |
| William A. Purtell (R) | 84th (1955–1957) | Prescott Bush (R) |
| William A. Purtell (R) | 85th (1957–1959) | Prescott Bush (R) |
| Thomas J. Dodd (D) | 86th (1959–1961) | Prescott Bush (R) |
| Thomas J. Dodd (D) | 87th (1961–1963) | Prescott Bush (R) |
| Thomas J. Dodd (D) | 88th (1963–1965) | Abraham Ribicoff (D) |
| Thomas J. Dodd (D) | 89th (1965–1967) | Abraham Ribicoff (D) |
| Thomas J. Dodd (D) | 90th (1967–1969) | Abraham Ribicoff (D) |
| Thomas J. Dodd (D) | 91st (1969–1971) | Abraham Ribicoff (D) |
| Lowell Weicker (R) | 92nd (1971–1973) | Abraham Ribicoff (D) |
| Lowell Weicker (R) | 93rd (1973–1975) | Abraham Ribicoff (D) |
| Lowell Weicker (R) | 94th (1975–1977) | Abraham Ribicoff (D) |
| Lowell Weicker (R) | 95th (1977–1979) | Abraham Ribicoff (D) |
| Lowell Weicker (R) | 96th (1979–1981) | Abraham Ribicoff (D) |
| Lowell Weicker (R) | 97th (1981–1983) | Chris Dodd (D) |
| Lowell Weicker (R) | 98th (1983–1985) | Chris Dodd (D) |
| Lowell Weicker (R) | 99th (1985–1987) | Chris Dodd (D) |
| Lowell Weicker (R) | 100th (1987–1989) | Chris Dodd (D) |
| Joe Lieberman (D) | 101st (1989–1991) | Chris Dodd (D) |
| Joe Lieberman (D) | 102nd (1991–1993) | Chris Dodd (D) |
| Joe Lieberman (D) | 103rd (1993–1995) | Chris Dodd (D) |
| Joe Lieberman (D) | 104th (1995–1997) | Chris Dodd (D) |
| Joe Lieberman (D) | 105th (1997–1999) | Chris Dodd (D) |
| Joe Lieberman (D) | 106th (1999–2001) | Chris Dodd (D) |
| Joe Lieberman (D) | 107th (2001–2003) | Chris Dodd (D) |
| Joe Lieberman (D) | 108th (2003–2005) | Chris Dodd (D) |
| Joe Lieberman (D) | 109th (2005–2007) | Chris Dodd (D) |
| Joe Lieberman (CfL) | 110th (2007–2009) | Chris Dodd (D) |
| Joe Lieberman (CfL) | 111th (2009–2011) | Chris Dodd (D) |
| Joe Lieberman (CfL) | 112th (2011–2013) | Richard Blumenthal (D) |
| Chris Murphy (D) | 113th (2013–2015) | Richard Blumenthal (D) |
| Chris Murphy (D) | 114th (2015–2017) | Richard Blumenthal (D) |
| Chris Murphy (D) | 115th (2017–2019) | Richard Blumenthal (D) |
| Chris Murphy (D) | 116th (2019–2021) | Richard Blumenthal (D) |
| Chris Murphy (D) | 117th (2021–2023) | Richard Blumenthal (D) |
| Chris Murphy (D) | 118th (2023–2025) | Richard Blumenthal (D) |
| Chris Murphy (D) | 119th (2025–2027) | Richard Blumenthal (D) |

## 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. One member of the House of Representatives is sent from each district via a popular vote. Districts are redrawn every ten years, after data from the US Census is collected.

### 1789–1793: 5 seats

Connecticut was granted five seats in the House until the first US census in 1790.
Pro-Administration (PA)
Members of the House of Representatives from Connecticut from 1789 to 1793 :
| Congress | Elected statewide on a general ticket from Connecticut's at-large district | Elected statewide on a general ticket from Connecticut's at-large district | Elected statewide on a general ticket from Connecticut's at-large district | Elected statewide on a general ticket from Connecticut's at-large district | Elected statewide on a general ticket from Connecticut's at-large district |
| Congress | 1st seat | 2nd seat | 3rd seat | 4th seat | 5th seat |
| 1st (1789–1791) | Benjamin Huntington (PA) | Roger Sherman (PA) | Jonathan Sturges (PA) | Jonathan Trumbull Jr. (PA) | Jeremiah Wadsworth (PA) |
| 2nd (1791–1793) | James Hillhouse (PA) | Amasa Learned (PA) | Jonathan Sturges (PA) | Jonathan Trumbull Jr. (PA) | Jeremiah Wadsworth (PA) |

### 1793–1823: 7 seats

Following the 1790 census, Connecticut was apportioned seven seats.
Democratic-Republican (DR)  Federalist (F)  Pro-Administration (PA)
Members of the House of Representatives from Connecticut from 1793 to 1823 :
| Congress | Elected statewide on a general ticket from Connecticut's at-large district | Elected statewide on a general ticket from Connecticut's at-large district | Elected statewide on a general ticket from Connecticut's at-large district | Elected statewide on a general ticket from Connecticut's at-large district | Elected statewide on a general ticket from Connecticut's at-large district | Elected statewide on a general ticket from Connecticut's at-large district | Elected statewide on a general ticket from Connecticut's at-large district |
| Congress | 1st seat | 2nd seat | 3rd seat | 4th seat | 5th seat | 6th seat | 7th seat |
| 3rd (1793–1795) | James Hillhouse (PA) | Amasa Learned (PA) | Joshua Coit (PA) | Jonathan Trumbull Jr. (PA) | Jeremiah Wadsworth (PA) | Zephaniah Swift (PA) | Uriah Tracy (PA) |
| 4th (1795–1797) | James Hillhouse (F) | Chauncey Goodrich (F) | Joshua Coit (F) | Roger Griswold (F) | Nathaniel Smith (F) | Zephaniah Swift (F) | Uriah Tracy (F) |
| 4th (1795–1797) | James Davenport (F) | Chauncey Goodrich (F) | Joshua Coit (F) | Roger Griswold (F) | Nathaniel Smith (F) | Zephaniah Swift (F) | Samuel W. Dana (F) |
| 5th (1797–1799) | James Davenport (F) | Chauncey Goodrich (F) | Joshua Coit (F) | Roger Griswold (F) | Nathaniel Smith (F) | John Allen (F) | Samuel W. Dana (F) |
| 5th (1797–1799) | William Edmond (F) | Chauncey Goodrich (F) | Jonathan Brace (F) | Roger Griswold (F) | Nathaniel Smith (F) | John Allen (F) | Samuel W. Dana (F) |
| 6th (1799–1801) | William Edmond (F) | Chauncey Goodrich (F) | Jonathan Brace (F) | Roger Griswold (F) | Elizur Goodrich (F) | John Davenport (F) | Samuel W. Dana (F) |
| 6th (1799–1801) | William Edmond (F) | Chauncey Goodrich (F) | John Cotton Smith (F) | Roger Griswold (F) | Elizur Goodrich (F) | John Davenport (F) | Samuel W. Dana (F) |
| 7th (1801–1803) | Benjamin Tallmadge (F) | Calvin Goddard (F) | John Cotton Smith (F) | Roger Griswold (F) | Elias Perkins (F) | John Davenport (F) | Samuel W. Dana (F) |
| 8th (1803–1805) | Benjamin Tallmadge (F) | Calvin Goddard (F) | John Cotton Smith (F) | Roger Griswold (F) | Simeon Baldwin (F) | John Davenport (F) | Samuel W. Dana (F) |
| 9th (1805–1807) | Benjamin Tallmadge (F) | Calvin Goddard (F) | John Cotton Smith (F) | Roger Griswold (F) | Jonathan O. Moseley (F) | John Davenport (F) | Samuel W. Dana (F) |
| 9th (1805–1807) | Benjamin Tallmadge (F) | Theodore Dwight (F) | Timothy Pitkin (F) | Lewis B. Sturges (F) | Jonathan O. Moseley (F) | John Davenport (F) | Samuel W. Dana (F) |
| 10th (1807–1809) | Benjamin Tallmadge (F) | Epaphroditus Champion (F) | Timothy Pitkin (F) | Lewis B. Sturges (F) | Jonathan O. Moseley (F) | John Davenport (F) | Samuel W. Dana (F) |
| 11th (1809–1811) | Benjamin Tallmadge (F) | Epaphroditus Champion (F) | Timothy Pitkin (F) | Lewis B. Sturges (F) | Jonathan O. Moseley (F) | John Davenport (F) | Samuel W. Dana (F) |
| 11th (1809–1811) | Benjamin Tallmadge (F) | Epaphroditus Champion (F) | Timothy Pitkin (F) | Lewis B. Sturges (F) | Jonathan O. Moseley (F) | John Davenport (F) | Ebenezer Huntington (F) |
| 12th (1811–1813) | Benjamin Tallmadge (F) | Epaphroditus Champion (F) | Timothy Pitkin (F) | Lewis B. Sturges (F) | Jonathan O. Moseley (F) | John Davenport (F) | Lyman Law (F) |
| 13th (1813–1815) | Benjamin Tallmadge (F) | Epaphroditus Champion (F) | Timothy Pitkin (F) | Lewis B. Sturges (F) | Jonathan O. Moseley (F) | John Davenport (F) | Lyman Law (F) |
| 14th (1815–1817) | Benjamin Tallmadge (F) | Epaphroditus Champion (F) | Timothy Pitkin (F) | Lewis B. Sturges (F) | Jonathan O. Moseley (F) | John Davenport (F) | Lyman Law (F) |
| 15th (1817–1819) | Thomas Scott Williams (F) | Uriel Holmes (F) | Timothy Pitkin (F) | Samuel B. Sherwood (F) | Jonathan O. Moseley (F) | Nathaniel Terry (F) | Ebenezer Huntington (F) |
| 15th (1817–1819) | Thomas Scott Williams (F) | Sylvester Gilbert (DR) | Timothy Pitkin (F) | Samuel B. Sherwood (F) | Jonathan O. Moseley (F) | Nathaniel Terry (F) | Ebenezer Huntington (F) |
| 16th (1819–1821) | Gideon Tomlinson (DR) | James Stevens (DR) | Samuel A. Foot (DR) | John Russ (DR) | Jonathan O. Moseley (DR) | Elisha Phelps (DR) | Henry W. Edwards (DR) |
| 17th (1821–1823) | Gideon Tomlinson (DR) | Daniel Burrows (DR) | Ansel Sterling (DR) | John Russ (DR) | Noyes Barber (DR) | Ebenezer Stoddard (DR) | Henry W. Edwards (DR) |

### 1823–1843: 6 seats

Following the 1820 census, Connecticut was apportioned six seats.
Democratic (D)  Democratic-Republican (DR)  Jacksonian (J)  National Republican (NR)  Whig (W)
Members of the House of Representatives from Connecticut from 1823 to 1843 :
| Congress | Elected statewide on a general ticket from Connecticut's at-large district | Elected statewide on a general ticket from Connecticut's at-large district | Elected statewide on a general ticket from Connecticut's at-large district | Elected statewide on a general ticket from Connecticut's at-large district | Elected statewide on a general ticket from Connecticut's at-large district | Elected statewide on a general ticket from Connecticut's at-large district |
| Congress | 1st seat | 2nd seat | 3rd seat | 4th seat | 5th seat | 6th seat |
| 18th (1823–1825) | Gideon Tomlinson (DR) | Lemuel Whitman (DR) | Ansel Sterling (DR) | Samuel A. Foot (DR) | Noyes Barber (DR) | Ebenezer Stoddard (DR) |
| 19th (1825–1827) | Gideon Tomlinson (NR) | John Baldwin (NR) | Ralph I. Ingersoll (NR) | Orange Merwin (NR) | Noyes Barber (NR) | Elisha Phelps (NR) |
| 20th (1827–1829) | David Plant (NR) | John Baldwin (NR) | Ralph I. Ingersoll (NR) | Orange Merwin (NR) | Noyes Barber (NR) | Elisha Phelps (NR) |
| 21st (1829–1831) | William W. Ellsworth (NR) | Jabez W. Huntington (NR) | Ralph I. Ingersoll (NR) | Ebenezer Young (NR) | Noyes Barber (NR) | William L. Storrs (NR) |
| 22nd (1831–1833) | William W. Ellsworth (NR) | Jabez W. Huntington (NR) | Ralph I. Ingersoll (NR) | Ebenezer Young (NR) | Noyes Barber (NR) | William L. Storrs (NR) |
| 23rd (1833–1835) | William W. Ellsworth (NR) | Jabez W. Huntington (NR) | Samuel A. Foot (NR) | Ebenezer Young (NR) | Noyes Barber (NR) | Samuel Tweedy (NR) |
| 23rd (1833–1835) | Joseph Trumbull (NR) | Phineas Miner (NR) | Ebenezer Jackson Jr. (NR) | Ebenezer Young (NR) | Noyes Barber (NR) | Samuel Tweedy (NR) |
| 24th (1835–1837) | Isaac Toucey (J) | Samuel Ingham (J) | Elisha Haley (J) | Zalmon Wildman (J) | Lancelot Phelps (J) | Andrew T. Judson (J) |
| 24th (1835–1837) | Isaac Toucey (J) | Samuel Ingham (J) | Elisha Haley (J) | Thomas T. Whittlesey (J) | Lancelot Phelps (J) | Orrin Holt (J) |
| Congress | District | District | District | District | District | District |
| Congress | 1st | 2nd | 3rd | 4th | 5th | 6th |
| 25th (1837–1839) | Isaac Toucey (D) | Samuel Ingham (D) | Elisha Haley (D) | Thomas T. Whittlesey (D) | Lancelot Phelps (D) | Orrin Holt (D) |
| 26th (1839–1841) | Joseph Trumbull (W) | William L. Storrs (W) | Thomas W. Williams (W) | Thomas B. Osborne (W) | Truman Smith (W) | John H. Brockway (W) |
| 26th (1839–1841) | Joseph Trumbull (W) | William W. Boardman (W) | Thomas W. Williams (W) | Thomas B. Osborne (W) | Truman Smith (W) | John H. Brockway (W) |
| 27th (1841–1843) | Joseph Trumbull (W) | William W. Boardman (W) | Thomas W. Williams (W) | Thomas B. Osborne (W) | Truman Smith (W) | John H. Brockway (W) |

### 1843–1903: 4 seats

Following the 1840 census, Connecticut was apportioned four seats.
Democratic (D)  Free Soil (FS)  Know Nothing (KN)  Republican (R)  Whig (W)
Members of the House of Representatives from Connecticut from 1843 to 1903 :
| Congress | 1st district | 2nd district | 3rd district | 4th district |
| 28th (1843–1845) | Thomas H. Seymour (D) | John Stewart (D) | George S. Catlin (D) | Samuel Simons (D) |
| 29th (1845–1847) | James Dixon (W) | Samuel Dickinson Hubbard (W) | John A. Rockwell (W) | Truman Smith (W) |
| 30th (1847–1849) | James Dixon (W) | Samuel Dickinson Hubbard (W) | John A. Rockwell (W) | Truman Smith (W) |
| 31st (1849–1851) | Loren P. Waldo (D) | Walter Booth (FS) | Chauncey Fitch Cleveland (D) | Thomas B. Butler (W) |
| 32nd (1851–1853) | Charles Chapman (W) | Colin M. Ingersoll (D) | Chauncey Fitch Cleveland (D) | Origen S. Seymour (D) |
| 33rd (1853–1855) | James T. Pratt (D) | Colin M. Ingersoll (D) | Nathan Belcher (D) | Origen S. Seymour (D) |
| 34th (1855–1857) | Ezra Clark Jr. (KN) | John Woodruff (KN) | Sidney Dean (KN) | William W. Welch (KN) |
| 35th (1857–1859) | Ezra Clark Jr. (R) | Samuel Arnold (D) | Sidney Dean (R) | William D. Bishop (D) |
| 36th (1859–1861) | Dwight Loomis (R) | John Woodruff (R) | Alfred A. Burnham (R) | Orris S. Ferry (R) |
| 37th (1861–1863) | Dwight Loomis (R) | James E. English (D) | Alfred A. Burnham (R) | George Catlin Woodruff (D) |
| 38th (1863–1865) | Henry C. Deming (R) | James E. English (D) | Augustus Brandegee (R) | John Henry Hubbard (R) |
| 39th (1865–1867) | Henry C. Deming (R) | Samuel L. Warner (R) | Augustus Brandegee (R) | John Henry Hubbard (R) |
| 40th (1867–1869) | Richard D. Hubbard (D) | Julius Hotchkiss (D) | Henry H. Starkweather (R) | William Barnum (D) |
| 41st (1869–1871) | Julius L. Strong (R) | Stephen Kellogg (R) | Henry H. Starkweather (R) | William Barnum (D) |
| 42nd (1871–1873) | Julius L. Strong (R) | Stephen Kellogg (R) | Henry H. Starkweather (R) | William Barnum (D) |
| 42nd (1871–1873) | Joseph R. Hawley (R) | Stephen Kellogg (R) | Henry H. Starkweather (R) | William Barnum (D) |
| 43rd (1873–1875) | Joseph R. Hawley (R) | Stephen Kellogg (R) | Henry H. Starkweather (R) | William Barnum (D) |
| 44th (1875–1877) | George M. Landers (D) | James Phelps (D) | Henry H. Starkweather (R) | William Barnum (D) |
| 44th (1875–1877) | George M. Landers (D) | James Phelps (D) | John T. Wait (R) | Levi Warner (D) |
| 45th (1877–1879) | George M. Landers (D) | James Phelps (D) | John T. Wait (R) | Levi Warner (D) |
| 46th (1879–1881) | Joseph R. Hawley (R) | James Phelps (D) | John T. Wait (R) | Frederick Miles (R) |
| 47th (1881–1883) | John R. Buck (R) | James Phelps (D) | John T. Wait (R) | Frederick Miles (R) |
| 48th (1883–1885) | William W. Eaton (D) | Charles L. Mitchell (D) | John T. Wait (R) | Edward W. Seymour (D) |
| 49th (1885–1887) | John R. Buck (R) | Charles L. Mitchell (D) | John T. Wait (R) | Edward W. Seymour (D) |
| 50th (1887–1889) | Robert J. Vance (D) | Carlos French (D) | Charles Addison Russell (R) | Miles T. Granger (D) |
| 51st (1889–1891) | William E. Simonds (R) | Washington F. Willcox (D) | Charles Addison Russell (R) | Frederick Miles (R) |
| 52nd (1891–1893) | Lewis Sperry (D) | Washington F. Willcox (D) | Charles Addison Russell (R) | Robert E. De Forest (D) |
| 53rd (1893–1895) | Lewis Sperry (D) | James P. Pigott (D) | Charles Addison Russell (R) | Robert E. De Forest (D) |
| 54th (1895–1897) | E. Stevens Henry (R) | Nehemiah D. Sperry (R) | Charles Addison Russell (R) | Ebenezer J. Hill (R) |
| 55th (1897–1899) | E. Stevens Henry (R) | Nehemiah D. Sperry (R) | Charles Addison Russell (R) | Ebenezer J. Hill (R) |
| 56th (1899–1901) | E. Stevens Henry (R) | Nehemiah D. Sperry (R) | Charles Addison Russell (R) | Ebenezer J. Hill (R) |
| 57th (1901–1903) | E. Stevens Henry (R) | Nehemiah D. Sperry (R) | Charles Addison Russell (R) | Ebenezer J. Hill (R) |
| 57th (1901–1903) | E. Stevens Henry (R) | Nehemiah D. Sperry (R) | Frank B. Brandegee (R) | Ebenezer J. Hill (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.
Democratic (D)  Republican (R)

### 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.
Democratic (D)  Republican (R)
Members of the House of Representatives from Connecticut from 1933 to 2003 :
| Congress | District | District | District | District | District | District |
| Congress | 1st | 2nd | 3rd | 4th | 5th | At-large |
| 73rd (1933–1935) | Herman Kopplemann (D) | William L. Higgins (R) | Francis T. Maloney (D) | Schuyler Merritt (R) | Edward W. Goss (R) | Charles Montague Bakewell (R) |
| 74th (1935–1937) | Herman Kopplemann (D) | William L. Higgins (R) | James A. Shanley (D) | Schuyler Merritt (R) | J. Joseph Smith (D) | William M. Citron (D) |
| 75th (1937–1939) | Herman Kopplemann (D) | William J. Fitzgerald (D) | James A. Shanley (D) | Alfred N. Phillips (D) | J. Joseph Smith (D) | William M. Citron (D) |
| 76th (1939–1941) | William J. Miller (R) | Thomas R. Ball (R) | James A. Shanley (D) | Albert E. Austin (R) | J. Joseph Smith (D) | B. J. Monkiewicz (R) |
| 77th (1941–1943) | Herman Kopplemann (D) | William J. Fitzgerald (D) | James A. Shanley (D) | Le Roy D. Downs (D) | J. Joseph Smith (D) | Lucien J. Maciora (D) |
| 77th (1941–1943) | Herman Kopplemann (D) | William J. Fitzgerald (D) | James A. Shanley (D) | Le Roy D. Downs (D) | Joseph E. Talbot (R) | Lucien J. Maciora (D) |
| 78th (1943–1945) | William J. Miller (R) | John D. McWilliams (R) | Ranulf Compton (R) | Clare Boothe Luce (R) | Joseph E. Talbot (R) | B. J. Monkiewicz (R) |
| 79th (1945–1947) | Herman Kopplemann (D) | Chase Woodhouse (D) | James P. Geelan (D) | Clare Boothe Luce (R) | Joseph E. Talbot (R) | Joseph F. Ryter (D) |
| 80th (1947–1949) | William J. Miller (R) | Horace Seely-Brown (R) | Ellsworth Foote (R) | John Davis Lodge (R) | James T. Patterson (R) | Antoni Sadlak (R) |
| 81st (1949–1951) | Abraham Ribicoff (D) | Chase Woodhouse (D) | John A. McGuire (D) | John Davis Lodge (R) | James T. Patterson (R) | Antoni Sadlak (R) |
| 82nd (1951–1953) | Abraham Ribicoff (D) | Horace Seely-Brown (R) | John A. McGuire (D) | Albert P. Morano (R) | James T. Patterson (R) | Antoni Sadlak (R) |
| 83rd (1953–1955) | Thomas J. Dodd (D) | Horace Seely-Brown (R) | Albert W. Cretella (R) | Albert P. Morano (R) | James T. Patterson (R) | Antoni Sadlak (R) |
| 84th (1955–1957) | Thomas J. Dodd (D) | Horace Seely-Brown (R) | Albert W. Cretella (R) | Albert P. Morano (R) | James T. Patterson (R) | Antoni Sadlak (R) |
| 85th (1957–1959) | Edwin H. May Jr. (R) | Horace Seely-Brown (R) | Albert W. Cretella (R) | Albert P. Morano (R) | James T. Patterson (R) | Antoni Sadlak (R) |
| 86th (1959–1961) | Emilio Daddario (D) | Chester B. Bowles (D) | Robert Giaimo (D) | Donald J. Irwin (D) | John S. Monagan (D) | Frank Kowalski (D) |
| 87th (1961–1963) | Emilio Daddario (D) | Horace Seely-Brown (R) | Robert Giaimo (D) | Abner W. Sibal (R) | John S. Monagan (D) | Frank Kowalski (D) |
| 88th (1963–1965) | Emilio Daddario (D) | William St. Onge (D) | Robert Giaimo (D) | Abner W. Sibal (R) | John S. Monagan (D) | Bernard Grabowski (D) |
| 89th (1965–1967) | Emilio Daddario (D) | William St. Onge (D) | Robert Giaimo (D) | Donald J. Irwin (D) | John S. Monagan (D) | 6th district |
| 89th (1965–1967) | Emilio Daddario (D) | William St. Onge (D) | Robert Giaimo (D) | Donald J. Irwin (D) | John S. Monagan (D) | Bernard Grabowski (D) |
| 90th (1967–1969) | Emilio Daddario (D) | William St. Onge (D) | Robert Giaimo (D) | Donald J. Irwin (D) | John S. Monagan (D) | Thomas Meskill (R) |
| 91st (1969–1971) | Emilio Daddario (D) | William St. Onge (D) | Robert Giaimo (D) | Lowell Weicker (R) | John S. Monagan (D) | Thomas Meskill (R) |
| 91st (1969–1971) | Emilio Daddario (D) | Robert H. Steele (R) | Robert Giaimo (D) | Lowell Weicker (R) | John S. Monagan (D) | Thomas Meskill (R) |
| 92nd (1971–1973) | William R. Cotter (D) | Robert H. Steele (R) | Robert Giaimo (D) | Stewart McKinney (R) | John S. Monagan (D) | Ella Grasso (D) |
| 93rd (1973–1975) | William R. Cotter (D) | Robert H. Steele (R) | Robert Giaimo (D) | Stewart McKinney (R) | Ronald A. Sarasin (R) | Ella Grasso (D) |
| 94th (1975–1977) | William R. Cotter (D) | Chris Dodd (D) | Robert Giaimo (D) | Stewart McKinney (R) | Ronald A. Sarasin (R) | Toby Moffett (D) |
| 95th (1977–1979) | William R. Cotter (D) | Chris Dodd (D) | Robert Giaimo (D) | Stewart McKinney (R) | Ronald A. Sarasin (R) | Toby Moffett (D) |
| 96th (1979–1981) | William R. Cotter (D) | Chris Dodd (D) | Robert Giaimo (D) | Stewart McKinney (R) | William R. Ratchford (D) | Toby Moffett (D) |
| 97th (1981–1983) | William R. Cotter (D) | Sam Gejdenson (D) | Larry DeNardis (R) | Stewart McKinney (R) | William R. Ratchford (D) | Toby Moffett (D) |
| 97th (1981–1983) | Barbara B. Kennelly (D) | Sam Gejdenson (D) | Larry DeNardis (R) | Stewart McKinney (R) | William R. Ratchford (D) | Toby Moffett (D) |
| 98th (1983–1985) | Barbara B. Kennelly (D) | Sam Gejdenson (D) | Bruce Morrison (D) | Stewart McKinney (R) | William R. Ratchford (D) | Nancy Johnson (R) |
| 99th (1985–1987) | Barbara B. Kennelly (D) | Sam Gejdenson (D) | Bruce Morrison (D) | Stewart McKinney (R) | John G. Rowland (R) | Nancy Johnson (R) |
| 100th (1987–1989) | Barbara B. Kennelly (D) | Sam Gejdenson (D) | Bruce Morrison (D) | Stewart McKinney (R) | John G. Rowland (R) | Nancy Johnson (R) |
| 100th (1987–1989) | Barbara B. Kennelly (D) | Sam Gejdenson (D) | Bruce Morrison (D) | Chris Shays (R) | John G. Rowland (R) | Nancy Johnson (R) |
| 101st (1989–1991) | Barbara B. Kennelly (D) | Sam Gejdenson (D) | Bruce Morrison (D) | Chris Shays (R) | John G. Rowland (R) | Nancy Johnson (R) |
| 102nd (1991–1993) | Barbara B. Kennelly (D) | Sam Gejdenson (D) | Rosa DeLauro (D) | Chris Shays (R) | Gary Franks (R) | Nancy Johnson (R) |
| 103rd (1993–1995) | Barbara B. Kennelly (D) | Sam Gejdenson (D) | Rosa DeLauro (D) | Chris Shays (R) | Gary Franks (R) | Nancy Johnson (R) |
| 104th (1995–1997) | Barbara B. Kennelly (D) | Sam Gejdenson (D) | Rosa DeLauro (D) | Chris Shays (R) | Gary Franks (R) | Nancy Johnson (R) |
| 105th (1997–1999) | Barbara B. Kennelly (D) | Sam Gejdenson (D) | Rosa DeLauro (D) | Chris Shays (R) | James H. Maloney (D) | Nancy Johnson (R) |
| 106th (1999–2001) | John B. Larson (D) | Sam Gejdenson (D) | Rosa DeLauro (D) | Chris Shays (R) | James H. Maloney (D) | Nancy Johnson (R) |
| 107th (2001–2003) | John B. Larson (D) | Rob Simmons (R) | Rosa DeLauro (D) | Chris Shays (R) | James H. Maloney (D) | Nancy Johnson (R) |

### 2003–present: 5 seats

Following the 2000 census, Connecticut was apportioned five seats.
Democratic (D)  Republican (R)