Current delegation

Bernie Sanders (I)

Peter Welch (D)

Vermont was admitted to the Union on March 4, 1791. From the 1850s until well into the 20th century, Vermont was always represented by members of the Republican Party. Democrat Patrick Leahy (served 1975–2023) was the longest serving US senator. Its current members of the United States Senate are Independent Bernie Sanders (since 2007) and Democrat Peter Welch (since 2023). Both senators served in the United States House of Representatives immediately prior, where they represented Vermont's only House district.

List of senators

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.						C	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.
#	Senator	Party	Dates in office	Electoral history	T		T	Electoral history	Dates in office	Party	Senator	#
Vacant			Mar 4, 1791 – Oct 17, 1791	Vermont elected its senators several months after statehood.	1	2nd	1	Vermont elected its senators several months after statehood.	Mar 4, 1791 – Oct 17, 1791	Vacant
1	Moses Robinson	Anti- Admin.	Oct 17, 1791 – Oct 15, 1796	Elected in 1791. Resigned.				Elected in 1791. Lost re-election.	Oct 17, 1791 – Mar 3, 1795	Anti- Admin.	Stephen R. Bradley	1
						3rd
		Democratic- Republican				4th	2	Elected in 1794.	Mar 4, 1795 – Sep 1, 1801	Federalist	Elijah Paine	2
Vacant			Oct 15, 1796 – Oct 18, 1796
2	Isaac Tichenor	Federalist	Oct 18, 1796 – Oct 17, 1797	Elected in 1796 to finish Robinson's term.
				Elected in 1796 to full term. Resigned to become Governor of Vermont.	2	5th
3	Nathaniel Chipman	Federalist	Oct 17, 1797 – Mar 3, 1803	Elected in 1797 to finish Tichenor's term. Lost re-election.
						6th
						7th	3	Re-elected in 1800. Resigned.
									Sep 1, 1801 – Oct 15, 1801	Vacant
								Elected to finish Paine's term.	Oct 15, 1801 – Mar 3, 1813	Democratic- Republican	Stephen R. Bradley	3
4	Israel Smith	Democratic- Republican	Mar 4, 1803 – Oct 1, 1807	Elected in 1802. Resigned.	3	8th
						9th
						10th	4	Re-elected in 1806. Retired.
Vacant			Oct 1, 1807 – Oct 10, 1807
5	Jonathan Robinson	Democratic- Republican	Oct 10, 1807 – Mar 3, 1815	Elected to finish Smith's term.
				Re-elected in 1808.[1] Retired.	4	11th
						12th
						13th	5	Elected in 1812.[2] Resigned.	Mar 4, 1813 – Nov 3, 1817	Democratic- Republican	Dudley Chase	4
6	Isaac Tichenor	Federalist	Mar 4, 1815 – Mar 3, 1821	Elected in 1814.[3] Retired.[4]	5	14th
						15th
								Elected to finish Chase's term. Resigned to serve as collector of customs for the district of Vermont.	Nov 4, 1817 – Jan 8, 1818	Democratic- Republican	James Fisk	5
									Jan 8, 1818 – Oct 20, 1818	Vacant
								Elected to finish Chase's term.	Oct 20, 1818 – Mar 3, 1825	Democratic- Republican	William A. Palmer	6
						16th	6	Elected in 1818 to the following term. Retired.
7	Horatio Seymour	Democratic- Republican	Mar 4, 1821 – Mar 3, 1833	Elected in 1821.	6	17th
						18th
		National Republican				19th	7	Elected in 1825. Declined to run for reelection.[5]	Mar 4, 1825 – Mar 3, 1831	National Republican	Dudley Chase	7
				Re-elected in 1827. Retired to run for Governor of Vermont	7	20th
						21st
						22nd	8	Elected in 1831.	Mar 4, 1831 – Apr 11, 1842	National Republican	Samuel Prentiss	8
8	Benjamin Swift	National Republican	Mar 4, 1833 – Mar 3, 1839	Elected in 1833. Retired.	8	23rd
						24th
		Whig				25th	9	Re-elected in 1837. Resigned.		Whig
9	Samuel S. Phelps	Whig	Mar 4, 1839 – Mar 3, 1851	Elected in 1839.	9	26th
						27th
									Apr 11, 1842 – Apr 23, 1842	Vacant
								Appointed to continue Prentiss's term. Elected in 1842 to finish Prentiss's term.[6] Retired.	Apr 23, 1842 – Mar 3, 1843	Whig	Samuel C. Crafts	9
						28th	10	Elected in 1843.	Mar 4, 1843 – Jan 14, 1853	Whig	William Upham	10
				Re-elected in 1845. Lost re-election.[7]	10	29th
						30th
						31st	11	Re-elected in 1848. Died.
10	Solomon Foot	Whig	Mar 4, 1851 – Mar 28, 1866	Elected in 1850.	11	32nd
									Jan 14, 1853 – Jan 17, 1853	Vacant
								Appointed to continue Upham's term. Lost entitlement to sit.[a]	Jan 17, 1853 – Mar 16, 1854	Whig	Samuel S. Phelps	11
						33rd
									Mar 16, 1854 – Oct 14, 1854	Vacant
								Elected to finish Upham's term. Retired.	Oct 14, 1854 – Mar 3, 1855	Free Soil	Lawrence Brainerd	12
		Republican				34th	12	Elected in 1855.	Mar 4, 1855 – Nov 9, 1865	Republican	Jacob Collamer	13
				Re-elected in 1856.	12	35th
						36th
						37th	13	Re-elected in 1861. Died.
				Re-elected in 1862. Died.	13	38th
						39th
									Nov 9, 1865 – Nov 21, 1865	Vacant
								Appointed to continue Collamer's term. Elected in 1866 to finish Collamer's term.[6] Lost re-election.	Nov 21, 1865 – Mar 3, 1867	Republican	Luke P. Poland	14
Vacant			Mar 28, 1866 – Apr 3, 1866
11	George F. Edmunds	Republican	Apr 3, 1866 – Nov 1, 1891	Appointed to continue Foot's term. Elected in 1866 to finish Foot's term.[6]
						40th	14	Elected in 1866.	Mar 4, 1867 – Dec 28, 1898	Republican	Justin S. Morrill	15
				Re-elected in 1868.	14	41st
						42nd
						43rd	15	Re-elected in 1872.
				Re-elected in 1874.	15	44th
						45th
						46th	16	Re-elected in 1878.
				Re-elected in 1880.	16	47th
						48th
						49th	17	Re-elected in 1884.
				Re-elected in 1886. Resigned to start a law practice.	17	50th
						51st
						52nd	18	Re-elected in 1890.
12	Redfield Proctor	Republican	Nov 2, 1891 – Mar 4, 1908	Appointed to continue Edmunds's term. Elected in 1892 to finish Edmunds's term.[6]
				Re-elected in 1892.	18	53rd
						54th
						55th	19	Re-elected in 1896. Died.
									Dec 28, 1898 – Jan 11, 1899	Vacant
								Appointed to continue Morrill's term. Retired when successor elected.	Jan 11, 1899 – Oct 18, 1900	Republican	Jonathan Ross	16
				Re-elected in 1898.	19	56th
								Elected to finish Morrill's term.	Oct 18, 1900 – Jul 12, 1923	Republican	William P. Dillingham	17
						57th
						58th	20	Re-elected in 1902.[9]
				Re-elected in 1904. Died.	20	59th
						60th
Vacant			Mar 4, 1908 – Mar 24, 1908
13	John W. Stewart	Republican	Mar 24, 1908 – Oct 21, 1908	Appointed to continue Proctor's term. Retired.
14	Carroll S. Page	Republican	Oct 21, 1908 – Mar 3, 1923	Elected to finish Proctor's term.
						61st	21	Re-elected in 1908.
				Re-elected in 1910.	21	62nd
						63rd
						64th	22	Re-elected in 1914.
				Re-elected in 1916. Retired.	22	65th
						66th
						67th	23	Re-elected in 1920. Died.
15	Frank L. Greene	Republican	Mar 4, 1923 – Dec 17, 1930	Elected in 1922.	23	68th
									Jul 12, 1923 – Nov 7, 1923	Vacant
								Elected to finish Dillingham's term.	Nov 7, 1923 – Oct 6, 1933	Republican	Porter H. Dale	18
						69th
						70th	24	Re-elected in 1926.
				Re-elected in 1928. Died.	24	71st
Vacant			Dec 17, 1930 – Dec 23, 1930
16	Frank C. Partridge	Republican	Dec 23, 1930 – Mar 31, 1931	Appointed to continue Greene's term. Lost nomination to finish Greene's term.
						72nd
17	Warren Austin	Republican	Apr 1, 1931 – Aug 2, 1946	Elected to finish Greene's term.
						73rd	25	Re-elected in 1932. Died.
									Oct 6, 1933 – Nov 21, 1933	Vacant
								Appointed to continue Dale's term. Elected in 1934 to finish Dale's term.[6]	Nov 21, 1933 – Jun 20, 1940	Republican	Ernest W. Gibson	19
				Re-elected in 1934.	25	74th
						75th
						76th	26	Re-elected in 1938. Died.
									Jun 20, 1940 – Jun 24, 1940	Vacant
								Appointed to continue his father's term. Retired.	Jun 24, 1940 – Jan 3, 1941	Republican	Ernest Gibson Jr.	20
				Re-elected in 1940. Resigned to become U.S. Ambassador to the United Nations	26	77th		Elected in 1940 to finish Gibson's term. Didn't take seat until Jan 10, 1941, in order to remain Governor of Vermont.	Jan 3, 1941 – Jan 3, 1975	Republican	George Aiken	21
						78th
						79th	27	Re-elected in 1944.
Vacant			Aug 2, 1946 – Nov 1, 1946
18	Ralph Flanders	Republican	Nov 1, 1946 – Jan 3, 1959	Appointed to finish Austin's term.
				Elected in 1946.	27	80th
						81st
						82nd	28	Re-elected in 1950.
				Re-elected in 1952. Retired.	28	83rd
						84th
						85th	29	Re-elected in 1956.
19	Winston L. Prouty	Republican	Jan 3, 1959 – Sep 10, 1971	Elected in 1958.	29	86th
						87th
						88th	30	Re-elected in 1962.
				Re-elected in 1964.	30	89th
						90th
						91st	31	Re-elected in 1968. Retired.
				Re-elected in 1970. Died.	31	92nd
Vacant			Sep 10, 1971 – Sep 16, 1971
20	Robert Stafford	Republican	Sep 16, 1971 – Jan 3, 1989	Appointed to continue Prouty's term. Elected in 1972 to finish Prouty's term.[10]
						93rd
						94th	32	Elected in 1974.	Jan 3, 1975 – Jan 3, 2023	Democratic	Patrick Leahy	22
				Re-elected in 1976.	32	95th
						96th
						97th	33	Re-elected in 1980.
				Re-elected in 1982. Retired.	33	98th
						99th
						100th	34	Re-elected in 1986.
21	Jim Jeffords	Republican	Jan 3, 1989 – Jan 3, 2007	Elected in 1988.	34	101st
						102nd
						103rd	35	Re-elected in 1992.
				Re-elected in 1994.	35	104th
						105th
						106th	36	Re-elected in 1998.
				Re-elected in 2000. Left the Republican Party on May 24, 2001. Retired.	36	107th
		Independent
						108th
						109th	37	Re-elected in 2004.
22	Bernie Sanders	Independent[b]	Jan 3, 2007 – present	Elected in 2006.	37	110th
						111th
						112th	38	Re-elected in 2010.
				Re-elected in 2012.	38	113th
						114th
						115th	39	Re-elected in 2016. Retired.
				Re-elected in 2018.	39	116th
						117th
						118th	40	Elected in 2022.	Jan 3, 2023 – present	Democratic	Peter Welch	23
To be determined in the 2024 election.					40	119th
						120th
						121st	41	To be determined in the 2028 election.
#	Senator	Party	Years in office	Electoral history	T	C	T	Electoral history	Years in office	Party	Senator	#
Class 1							Class 3