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Class 1
Class 1 U.S. senators belong to the electoral cycle that has recently been contested in 2000, 2006, 2012, and 2018. The next election will be in 2024.
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C
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Class 3
Class 3 U.S. senators belong to the electoral cycle that has recently been contested in 2004, 2010, 2016, and 2022. The next election will be in 2028.
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| #
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Senator
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Party
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Dates in office
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Electoral history
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T
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T
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Electoral history
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Dates in office
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Party
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Senator
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#
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| 1
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Oliver Ellsworth
|
Pro-Administration
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Mar 4, 1789 –
Mar 8, 1796
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Elected in 1788.
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1
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1st
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1
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Elected in 1788.Resigned.
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Mar 4, 1789 –
Mar 3, 1791
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Pro-Administration
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William S. Johnson
|
1
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| Re-elected in 1791.Resigned to become Chief Justice of the United States.
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2
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2nd
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Mar 4, 1791 –
Jun 13, 1791
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Vacant
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| Elected to finish Johnson’s term.Died.
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Jun 13, 1791 –
Jul 23, 1793
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Pro-Administration
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Roger Sherman
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2
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| 3rd
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|
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Jul 23, 1793 –
Dec 2, 1793
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Vacant
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| Elected to finish Sherman’s term.Retired.
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Dec 2, 1793 –
Mar 3, 1795
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Pro-Administration
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Stephen Mix Mitchell
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3
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| Federalist
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4th
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2
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Election date unknown.Resigned to become Lieutenant Governor of Connecticut.
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Mar 4, 1795 –
Jun 10, 1796
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Federalist
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Jonathan Trumbull Jr.
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4
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| Vacant
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Mar 8, 1796 –
May 12, 1796
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|
|
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Jun 10, 1796 –
Oct 13, 1796
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Vacant
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| Elected to finish Trumbull’s term.
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Oct 13, 1796 –
Jul 19, 1807
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Federalist
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Uriah Tracy
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5
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| 2
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James Hillhouse
|
Federalist
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May 12, 1796 –
Jun 10, 1810
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Elected to finish Ellsworth’s term.
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| Re-elected in 1797.
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3
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5th
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| 6th
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| 7th
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3
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Re-elected in 1801.
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| Re-elected in 1802.[1] |
4
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8th
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| 9th
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| 10th
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4
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Re-elected in 1807.Died.
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|
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Jul 19, 1807 –
Oct 25, 1807
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Vacant
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| Elected to finish Tracy’s term.
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Oct 25, 1807 –
May 13, 1813
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Federalist
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Chauncey Goodrich
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6
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| Re-elected in 1809.Resigned.
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5
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11th
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| Vacant
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Jun 10, 1810 –
Dec 4, 1810
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| 3
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Samuel W. Dana
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Federalist
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Dec 4, 1810 –
Mar 3, 1821
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Elected to finish Hillhouse’s term.
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| 12th
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| 13th
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5
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Re-elected in 1813.Resigned to become Lieutenant Governor of Connecticut.
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| Elected to finish Goodrich’s term.Retired.
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May 13, 1813 –
Mar 3, 1819
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Federalist
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David Daggett
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7
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| Re-elected in 1814.
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6
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14th
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| 15th
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| 16th
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6
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Elected in 1818.Re-elected in 1824 and presented his credentials but was not permitted to qualify.
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Mar 4, 1819 –
Mar 3, 1825
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Democratic-Republican
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James Lanman
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8
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| 4
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Elijah Boardman
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Democratic-Republican
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Mar 4, 1821 –
Aug 18, 1823
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Elected in 1821.Died.
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7
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17th
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| 18th
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| Vacant
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Aug 18, 1823 –
Oct 8, 1823
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| 5
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Henry W. Edwards
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Democratic-Republican
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Oct 8, 1823 –
Mar 3, 1827
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Appointed to continue Boardman’s term.Elected in 1824 to finish Boardman’s term.
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| Jacksonian
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19th
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7
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Mar 4, 1825 –
May 4, 1825
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Vacant
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| Elected late to complete Lanman’s term.[data unknown/missing]
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May 4, 1825 –
Mar 3, 1831
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National
Republican
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Calvin Willey
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9
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| 6
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Samuel A. Foot
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National
Republican
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Mar 4, 1827 –
Mar 3, 1833
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Elected in 1826.Lost re-election.
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8
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20th
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| 21st
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| 22nd
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8
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Elected in 1831.[data unknown/missing]
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Mar 4, 1831 –
Mar 3, 1837
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National
Republican
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Gideon Tomlinson
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10
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| 7
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Nathan Smith
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National
Republican
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Mar 4, 1833 –
Dec 6, 1835
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Elected in 1832.Died.
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9
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23rd
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| 24th
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| Vacant
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Dec 6, 1835 –
Dec 21, 1835
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| 8
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John Milton Niles
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Jacksonian
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Dec 21, 1835 –
Mar 3, 1839
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Elected to finish Smith’s term.Retired.
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| Democratic
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25th
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9
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Elected in 1837.[data unknown/missing]
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Mar 4, 1837 –
Mar 3, 1843
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Democratic
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Perry Smith
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11
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| 9
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Thaddeus Betts
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Whig
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Mar 4, 1839 –
Apr 7, 1840
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Elected in 1838 or 1839.Died.
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10
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26th
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| Vacant
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Apr 7, 1840 –
May 4, 1840
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|
| 10
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Jabez W. Huntington
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Whig
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May 4, 1840 –
Nov 1, 1847
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Elected to finish Betts’s term.
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| 27th
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| 28th
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10
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Elected in 1842.Retired.
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Mar 4, 1843[2] –
Mar 3, 1849
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Democratic
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John Milton Niles
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12
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| Re-elected in 1844 or 1845.Died.
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11
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29th
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| 30th
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| Vacant
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Nov 1, 1847 –
Nov 11, 1847
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|
| 11
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Roger Sherman Baldwin
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Whig
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Nov 11, 1847 –
Mar 3, 1851
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Appointed to continue Huntington’s term.Elected in 1848 to finish Huntington’s term.[data unknown/missing]
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| 31st
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11
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Elected in 1848 or 1849.Resigned.
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Mar 4, 1849 –
May 24, 1854
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Whig
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Truman Smith
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13
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| Vacant
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Mar 4, 1851 –
May 12, 1852
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|
12
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32nd
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| 12
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Isaac Toucey
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Democratic
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May 12, 1852 –
Mar 3, 1857
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Elected late in 1852.Retired.
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| 33rd
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| Elected to finish Smith’s term.Retired.
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May 24, 1854 –
Mar 3, 1855
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Free Soil
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Francis Gillette
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14
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| 34th
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12
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Elected in 1854.
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Mar 4, 1855 –
Mar 3, 1867
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Republican
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Lafayette S. Foster
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15
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| 13
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James Dixon
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Republican
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Mar 4, 1857 –
Mar 3, 1869
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Elected in 1856.
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13
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35th
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| 36th
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| 37th
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13
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Re-elected in 1860.Lost re-election.
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| Re-elected in 1863.Lost re-election.
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14
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38th
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| 39th
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| 40th
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14
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Elected in 1866.
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Mar 4, 1867 –
Nov 21, 1875
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Republican
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Orris S. Ferry
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16
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| 14
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William Alfred Buckingham
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Republican
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Mar 4, 1869 –
Feb 5, 1875
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Elected in 1868 or 1869.Lost re-election and died before end of term.
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15
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41st
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| 42nd
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| 43rd
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15
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Re-elected in 1872.Died.
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Liberal Republican
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| 15
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William W. Eaton
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Democratic
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Feb 5, 1875 –
Mar 3, 1881
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Appointed to finish Buckingham’s term, having been elected to the next term.
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| Elected in 1874.Unknown if retired or lost re-election.
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16
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44th
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Republican
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|
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Nov 21, 1875 –
Nov 27, 1875
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Vacant
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| Appointed to continue Ferry’s term.Retired when successor elected.
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Nov 27, 1875 –
May 17, 1876
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Democratic
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James E. English
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17
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| Elected to finish Ferry’s term.[data unknown/missing]
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May 17, 1876 –
Mar 3, 1879
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Democratic
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William Henry Barnum
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18
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| 45th
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| 46th
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16
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Elected in 1879.
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Mar 4, 1879 –
Apr 21, 1905
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Republican
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Orville H. Platt
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19
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| 16
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Joseph Roswell Hawley
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Republican
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Mar 4, 1881 –
Mar 3, 1905
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Elected in 1881.
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17
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47th
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| 48th
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| 49th
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17
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Re-elected in 1885.
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| Re-elected in 1887.
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18
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50th
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| 51st
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| 52nd
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18
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Re-elected in 1891.
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| Re-elected in 1893.
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19
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53rd
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| 54th
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| 55th
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19
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Re-elected in 1897.
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| Re-elected in 1899.Retired.
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20
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56th
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| 57th
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| 58th
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20
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Re-elected in 1903.Died.
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|
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Apr 21, 1905 –
May 10, 1905
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Vacant
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| 17
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Morgan Bulkeley
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Republican
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Mar 4, 1905 –
Mar 3, 1911
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Elected in 1905.[3]Lost re-election.
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21
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59th
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| Elected to finish Platt’s term.
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May 10, 1905 –
Oct 14, 1924
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Republican
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Frank B. Brandegee
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20
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| 60th
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| 61st
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21
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Re-elected in 1909.
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| 18
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George P. McLean
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Republican
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Mar 4, 1911 –
Mar 3, 1929
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Elected in 1911.
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22
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62nd
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| 63rd
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| 64th
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22
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Re-elected in 1914.
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| Re-elected in 1916.
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23
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65th
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| 66th
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| 67th
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23
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Re-elected in 1920.Died.
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| Re-elected in 1922.Retired.
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24
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68th
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|
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Oct 14, 1924 –
Dec 17, 1924
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Vacant
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| Elected to finish Brandegee’s term and seated Jan 8, 1925.[4] |
Dec 17, 1924 –
Mar 3, 1933
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Republican
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Hiram Bingham III
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21
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| 69th
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| 70th
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24
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Re-elected in 1926.Lost re-election.
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| 19
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Frederic C. Walcott
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Republican
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Mar 4, 1929 –
Jan 3, 1935
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Elected in 1928.Lost re-election.
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25
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71st
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| 72nd
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| 73rd
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25
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Elected in 1932.Lost re-election.
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Mar 4, 1933 –
Jan 3, 1939
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Democratic
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Augustine Lonergan
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22
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| 20
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Francis T. Maloney
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Democratic
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Jan 3, 1935 –
Jan 16, 1945
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Elected in 1934.
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26
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74th
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| 75th
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| 76th
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26
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Elected in 1938.Lost re-election.
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Jan 3, 1939 –
Jan 3, 1945
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Republican
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John A. Danaher
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23
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| Re-elected in 1940.Died.
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27
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77th
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| 78th
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| 79th
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27
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Elected in 1944.
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Jan 3, 1945 –
Jul 28, 1952
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Democratic
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Brien McMahon
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24
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| Vacant
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Jan 16, 1945 –
Feb 15, 1945
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| 21
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Thomas C. Hart
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Republican
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Feb 15, 1945 –
Nov 5, 1946
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Appointed to continue Maloney’s term.Successor qualified.
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| Vacant
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Nov 5, 1946 –
Dec 27, 1946
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| 22
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Raymond E. Baldwin
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Republican
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Dec 27, 1946 –
Dec 16, 1949
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Elected to finish Maloney’s term.
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| Elected to full term in 1946.Resigned.
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28
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80th
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| 81st
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| 23
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William Benton
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Democratic
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Dec 17, 1949 –
Jan 3, 1953
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Appointed to continue Baldwin’s term.Elected to finish Baldwin’s term.Lost re-election.
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| 82nd
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28
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Re-elected in 1950.Died.
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|
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Jul 28, 1952 –
Aug 29, 1952
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Vacant
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| Appointed to continue McMahon’s term.Retired when successor elected, and elected to the Class 1 seat.
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Aug 29, 1952 –
Nov 4, 1952
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Republican
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William A. Purtell
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25
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| Elected to finish McMahon’s term.
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Nov 4, 1952 –
Jan 3, 1963
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Republican
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Prescott Bush
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26
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| 24
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William A. Purtell
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Republican
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Jan 3, 1953 –
Jan 3, 1959
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Elected in 1952.Lost re-election.
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29
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83rd
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| 84th
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| 85th
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29
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Re-elected in 1956.Retired.
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| 25
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Thomas J. Dodd
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Democratic
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Jan 3, 1959 –
Jan 3, 1971
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Elected in 1958.
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30
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86th
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| 87th
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| 88th
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30
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Elected in 1962.
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Jan 3, 1963 –
Jan 3, 1981
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Democratic
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Abraham Ribicoff
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27
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| Re-elected in 1964.Lost renomination, and lost re-election as an independent.
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31
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89th
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| 90th
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| 91st
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31
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Re-elected in 1968.
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| 26
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Lowell Weicker
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Republican
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Jan 3, 1971 –
Jan 3, 1989
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Elected in 1970.
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32
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92nd
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| 93rd
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| 94th
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32
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Re-elected in 1974.Retired.
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| Re-elected in 1976.
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33
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95th
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| 96th
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| 97th
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33
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Elected in 1980.
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Jan 3, 1981 –
Jan 3, 2011
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Democratic
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Chris Dodd
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28
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| Re-elected in 1982.Lost re-election.
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34
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98th
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| 99th
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| 100th
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34
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Re-elected in 1986.
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| 27
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Joe Lieberman
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Democratic
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Jan 3, 1989 –
Jan 3, 2013
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Elected in 1988.
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35
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101st
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| 102nd
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| 103rd
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35
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Re-elected in 1992.
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| Re-elected in 1994.
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36
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104th
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| 105th
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| 106th
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36
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Re-elected in 1998.
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| Re-elected in 2000.
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37
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107th
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| 108th
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| 109th
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37
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Re-elected in 2004.Retired.
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| Independent
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Lost re-nomination, but re-elected in 2006 as an Independent.Retired.
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38
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110th
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| 111th
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| 112th
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38
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Elected in 2010.
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Jan 3, 2011 –
Present
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Democratic
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Richard Blumenthal
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29
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| 28
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Chris Murphy
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Democratic
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Jan 3, 2013 –
Present
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Elected in 2012.
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39
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113th
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| 114th
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| 115th
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39
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Re-elected in 2016.
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| Re-elected in 2018.
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40
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116th
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| 117th
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| 118th
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40
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Re-elected in 2022.
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| To be determined in the 2024 election.
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41
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119th
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| 120th
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| 121st
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41
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To be determined in the 2028 election.
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| #
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Senator
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Party
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Years in office
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Electoral history
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T
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|
T
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Electoral history
|
Years in office
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Party
|
Senator
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#
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| Class 1
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Class 3
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