Current delegation

Bill Cassidy (R)

John Kennedy (R)

Louisiana was admitted to the Union on April 30, 1812, and elects senators toclass 2 andclass 3.Russell Long was the state's longest-serving senator, serving from 1948–1987. Its current senators are RepublicansBill Cassidy andJohn Kennedy.

Louisiana is one of fifteen states alongsideCalifornia,Colorado,Georgia,Hawaii,Idaho,Maine,Massachusetts,Minnesota,Missouri,Nevada,Pennsylvania,South Dakota,Utah, andWest Virginia to have a younger senior senator and an older junior senator.

Class 2 Class 2 U.S. senators belong to the electoral cycle that has recently been contested in2002,2008,2014, and2020. The next election will be in2026.						C	Class 3 Class 3 U.S. senators belong to the electoral cycle that has recently been contested in2004,2010,2016, and2022. The next election will be in2028.
#	Senator	Party	Dates in office	Electoral history	T		T	Electoral history	Dates in office	Party	Senator	#
Vacant			Apr 30, 1812 – Sep 3, 1812	Louisiana did not elect its senators until four months after statehood.	1	12th	1	Louisiana did not elect its senators until four months after statehood.	Apr 30, 1812 – Sep 3, 1812	Vacant
1	Jean Noël Destréhan	Democratic- Republican	Sep 3, 1812 – Oct 1, 1812	Resigned				Elected in 1812.	Sep 3, 1812 – Mar 3, 1813	Democratic- Republican	Allan B. Magruder	1
Vacant			Oct 1, 1812 – Oct 8, 1812
2	Thomas Posey	Democratic- Republican	Oct 8, 1812 – Feb 4, 1813	Appointed to continue Destréhan's term. Lost election to finish Destréhan's term.
3	James Brown	Democratic- Republican	Feb 5, 1813 – Mar 3, 1817	Elected to finish Destréhan's term. Lost election to full term.
						13th	2	Elected in 1813 Retired.	Mar 4, 1813 – Mar 3, 1819	Democratic- Republican	Eligius Fromentin	2
						14th
4	William C. C. Claiborne	Democratic- Republican	Mar 4, 1817 – Nov 23, 1817	Elected in 1817. Died.	2	15th
Vacant			Nov 23, 1817 – Jan 12, 1818
5	Henry Johnson	Democratic- Republican	Jan 12, 1818 – May 27, 1824	Elected to finish Claiborne's term.
						16th	3	Elected in 1819. Resigned to becomeU.S. Minister to France.	Mar 4, 1819 – Dec 10, 1823	Democratic- Republican	James Brown	3
						17th
				Elected to full term in 1823. Resigned to becomeGovernor of Louisiana.	3	18th
									Dec 10, 1823 – Jan 15, 1824	Vacant
								Elected to finish Brown's term.	Jan 15, 1824 – May 19, 1833	Democratic- Republican	Josiah S. Johnston	4
Vacant			May 27, 1824 – Nov 19, 1824
6	Dominique Bouligny	Democratic- Republican	Nov 19, 1824 – Mar 3, 1829	Elected to finish Johnson's term.
		National Republican				19th	4	Elected to full term in 1825.		National Republican
						20th
7	Edward Livingston	Jacksonian	Mar 4, 1829 – May 24, 1831	Elected in 1829.[1] Resigned to becomeU.S. Secretary of State.	4	21st
						22nd	5	Re-elected in 1831. Died.
Vacant			May 24, 1831 – Nov 15, 1831
8	George A. Waggaman	National Republican	Nov 15, 1831 – Mar 3, 1835	Elected to finish Livingston's term.
						23rd
									May 19, 1833 – Dec 19, 1833	Vacant
								Elected to finish Johnston's term. Resigned due to ill health.	Dec 19, 1833 – Jan 5, 1837	National Republican	Alexander Porter	5
Vacant			Mar 4, 1835 – Jan 13, 1836	Charles Gayarré (J) waselected in 1835, but resigned due to ill health.	5	24th
9	Robert C. Nicholas	Jacksonian	Jan 13, 1836 – Mar 3, 1841	Elected to finish Gauarré's term. [data missing]
									Jan 5, 1837 – Jan 12, 1837	Vacant
								Elected to finish Porter's term.	Jan 12, 1837 – Mar 1, 1842	Jacksonian	Alexandre Mouton	6
		Democratic				25th	6	Re-elected in 1837. Resigned.		Democratic
						26th
10	Alexander Barrow	Whig	Mar 4, 1841 – Dec 29, 1846	Elected in 1840. Died.	6	27th
									Mar 1, 1842 – Apr 14, 1842	Vacant
								Appointed to finish Mouton's term. Lost election to full term.	Apr 14, 1842 – Mar 3, 1843	Whig	Charles Conrad	7
						28th	7	Elected in 1843, but due to ill health did not take his seat. Died.	Mar 4, 1843 – Jan 13, 1844	Whig	Alexander Porter	8
									Jan 13, 1844 – Feb 12, 1844	Vacant
								Elected to finish Porter's term Lost election to full term in 1849.	Feb 12, 1844 – Mar 3, 1849	Whig	Henry Johnson	9
						29th
Vacant			Dec 29, 1846 – Jan 21, 1847
11	Pierre Soulé	Democratic	Jan 21, 1847 – Mar 3, 1847	Elected to finish Barrow's term. [data missing]
12	Solomon W. Downs	Democratic	Mar 4, 1847 – Mar 3, 1853	Elected in 1847. Lost re-election.	7	30th
						31st	8	Elected in 1848. Resigned to becomeU.S. Minister to Spain.	Mar 3, 1849 – Apr 11, 1853	Democratic	Pierre Soulé	10
						32nd
13	Judah P. Benjamin	Whig	Mar 4, 1853 – Feb 4, 1861	Elected in 1852.	8	33rd
									Apr 11, 1853 – Dec 5, 1853	Vacant
								Elected to finish Soulé's term.	Dec 5, 1853 – Feb 4, 1861	Democratic	John Slidell	11
						34th	9	Re-election year unknown. Resigned.
		Democratic				35th
				Re-elected in 1859. Withdrew.	9	36th
Vacant			Feb 4, 1861 – Jul 8, 1868	Civil War andReconstruction				Civil War andReconstruction	Feb 4, 1861 – Jul 9, 1868	Vacant
						37th	10
						38th
					10	39th
						40th	11
14	John S. Harris	Republican	Jul 8, 1868 – Mar 3, 1871	Elected to finish incomplete term in 1868. [data missing].
								Elected to finish incomplete term. Resigned to becomeGovernor of Louisiana.	Jul 9, 1868 – Nov 1, 1872	Republican	William Pitt Kellogg	12
						41st
15	J. R. West	Republican	Mar 4, 1871 – Mar 3, 1877	Election year unknown. Retired.	11	42nd
								Senate declined to seat rival claimantsWilliam L. McMillen andP. B. S. Pinchback[2]	Nov 1, 1872 – Jan 12, 1876	Vacant
						43rd	12
						44th
								Elected to finish incomplete term in 1876. Lost re-election.	Jan 12, 1876 – Mar 3, 1879	Democratic	James B. Eustis	13
16	William Pitt Kellogg	Republican	Mar 4, 1877 – Mar 3, 1883	Elected in 1876. Retired torun for U.S. House.	12	45th
						46th	13	Elected in 1879. Lost re-election.	Mar 4, 1879 – Mar 3, 1885	Democratic	Benjamin F. Jonas	14
						47th
17	Randall L. Gibson	Democratic	Mar 4, 1883 – Dec 15, 1892	Elected in 1882.	13	48th
						49th	14	Election year unknown. Retired.	Mar 4, 1885 – Mar 3, 1891	Democratic	James B. Eustis	15
						50th
				Re-elected in 1889. Died.	14	51st
						52nd	15	Elected in 1891. Resigned to becomeU.S. Supreme Court Justice.	Mar 4, 1891 – Mar 12, 1894	Democratic	Edward Douglass White	16
Vacant			Dec 15, 1892 – Dec 31, 1892
18	Donelson Caffery	Democratic	Dec 31, 1892 – Mar 3, 1901	Appointed to continue Gibson's term. Elected in 1894 to finish Gibson's term.[3]
						53rd
								Appointed to continue White's term. Elected in 1894 to finish White's term.[4] Retired.	Mar 12, 1894 – Mar 3, 1897	Democratic	Newton C. Blanchard	17
				Elected in 1894 to the next term, before election to finish Gibson's term. Retired.	15	54th
						55th	16	Elected in 1896.[5]	Mar 4, 1897 – Jun 28, 1910	Democratic	Samuel D. McEnery	18
						56th
19	Murphy J. Foster	Democratic	Mar 4, 1901 – Mar 3, 1913	Elected in 1900.[6]	16	57th
						58th	17	Re-elected early in 1900.[6]
						59th
				Re-elected early in 1904.[7] Lost renomination.	17	60th
						61st	18	Re-elected in 1908.[8] Died.
									Jun 28, 1910 – Dec 7, 1910	Vacant
								Elected to finish McEnery's term.[4] Retired.	Dec 7, 1910 – Mar 3, 1915	Democratic	John Thornton	19
						62nd
20	Joseph E. Ransdell	Democratic	Mar 4, 1913 – Mar 3, 1931	Elected in 1912.	18	63rd
						64th	19	Elected early in 1912. Died.	Mar 4, 1915 – Apr 12, 1918	Democratic	Robert F. Broussard	20
						65th
									Apr 12, 1918 – Apr 22, 1918	Vacant
								Appointed to continue Broussard's term. Retired when elected successor qualified.	Apr 22, 1918 – Nov 5, 1918	Democratic	Walter Guion	21
								Elected to finish Broussard's term. Retired.	Nov 6, 1918 – Mar 3, 1921	Democratic	Edward J. Gay	22
				Re-elected in 1918.	19	66th
						67th	20	Elected in 1920.	Mar 4, 1921 – Mar 3, 1933	Democratic	Edwin S. Broussard	23
						68th
				Re-elected in 1924. Lost renomination.	20	69th
						70th	21	Re-elected in 1926. Lost renomination.
						71st
Vacant			Mar 4, 1931 – Jan 25, 1932		21	72nd
21	Huey Long	Democratic	Jan 25, 1932 – Sep 10, 1935	Elected in 1930, but continued to serve asLouisiana governor until Jan 25, 1932. Assassinated.
						73rd	22	Elected in 1932.	Mar 4, 1933 – May 14, 1948	Democratic	John Overton	24
						74th
Vacant			Sep 10, 1935 – Jan 31, 1936
22	Rose M. Long	Democratic	Jan 31, 1936 – Jan 3, 1937	Appointed to continue her husband's term. Elected in 1936 to finish her husband's term.[3] Retired.
23	Allen Ellender	Democratic	Jan 3, 1937 – July 27, 1972	Elected in 1936.	22	75th
						76th	23	Re-elected in 1938.
						77th
				Re-elected in 1942.	23	78th
						79th	24	Re-elected in 1944. Died.
						80th
									May 14, 1948 – May 18, 1948	Vacant
								Appointed to continue Overton's term. Retired when elected successor qualified.	May 18, 1948 – Dec 30, 1948	Democratic	William C. Feazel	25
								Elected to finish Overton's term.	Dec 31, 1948 – Jan 3, 1987	Democratic	Russell Long	26
				Re-elected in 1948.	24	81st
						82nd	25	Re-elected in 1950.
						83rd
				Re-elected in 1954.	25	84th
						85th	26	Re-elected in 1956.
						86th
				Re-elected in 1960.	26	87th
						88th	27	Re-elected in 1962.
						89th
				Re-elected in 1966. Died.	27	90th
						91st	28	Re-elected in 1968.
						92nd
Vacant			Jul 27, 1972 – Aug 1, 1972
24	Elaine Edwards	Democratic	Aug 1, 1972 – Nov 13, 1972	Appointed byher husband to continue Ellender's term. Retired when successor qualified and resigned early.
25	J. Bennett Johnston	Democratic	Nov 14, 1972 – Jan 3, 1997	Appointed to finish Ellender's term, having already been elected to the next term.
				Elected in 1972.	28	93rd
						94th	29	Re-elected in 1974.
						95th
				Re-elected in 1978.	29	96th
						97th	30	Re-elected in 1980. Retired.
						98th
				Re-elected in 1984.	30	99th
						100th	31	Elected in 1986.	Jan 3, 1987 – Jan 3, 2005	Democratic	John Breaux	27
						101st
				Re-elected in 1990. Retired.	31	102nd
						103rd	32	Re-elected in 1992.
						104th
26	Mary Landrieu	Democratic	Jan 3, 1997 – Jan 3, 2015	Elected in 1996.	32	105th
						106th	33	Re-elected in 1998. Retired.
						107th
				Re-elected in 2002 in runoff election.	33	108th
						109th	34	Elected in 2004.	Jan 3, 2005 – Jan 3, 2017	Republican	David Vitter	28
						110th
				Re-elected in 2008. Lost re-election.	34	111th
						112th	35	Re-elected in 2010. Retired.[9]
						113th
27	Bill Cassidy	Republican	Jan 3, 2015 – present	Elected in 2014 in runoff election.	35	114th
						115th	36	Elected in 2016 in runoff election.	Jan 3, 2017 – present	Republican	John Kennedy	29
						116th
				Re-elected in 2020.	36	117th
						118th	37	Re-elected in 2022.
						119th
To be determined in the2026 election.					37	120th
						121st	38	To be determined in the2028 election.
#	Senator	Party	Years in office	Electoral history	T	C	T	Electoral history	Years in office	Party	Senator	#
Class 2							Class 3

• List of United States representatives from Louisiana
• United States congressional delegations from Louisiana
• Elections in Louisiana

• Byrd, Robert C. (October 1, 1993). Wolff, Wendy (ed.).The Senate, 1789-1989: Historical Statistics, 1789-1992.United States Senate Historical Office (volume 4 Bicentennial ed.).Washington, D.C.:U.S. Government Printing Office.ISBN 9780160632563.
• Taft, George S.; Furber, George P.;Buck, George M.; Webb, Charles A.; Pierce, Herbert R. (1913).Compilation of Senate Election Cases from 1789 to 1913.U.S. Senate Committee on Privileges and Elections.Washington, D.C.:U.S. Government Printing Office.

• United States senators from Louisiana
• Lists of Louisiana politicians
• Lists of United States senators by state

• Articles with short description
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