List of United States senators in the 117th Congress by seniority

For a full description of seniority, an explanation of its rules, and the current list, see Seniority in the United States Senate.

This is a complete list of United States senators during the 117th United States Congress listed by seniority, from January 3, 2021, to January 3, 2023. It is a historical listing and will contain people who have not served the entire two-year Congress should anyone resign, die, or be expelled.

In this Congress, the most junior senior senator was Kelly Loeffler until Jon Ossoff and Raphael Warnock were sworn in on January 20, 2021, after which Ossoff became the most junior senior senator. The most senior junior senator is Maria Cantwell.

Order of service is based on the commencement of the senator's first term. Behind this is former service as a senator (only giving the senator seniority within his or her new incoming class), service as vice president, a House member, a cabinet secretary, or a governor of a state. The final factor is the population of the senator's state. ^{[1] [2] [3] [4] [5]}

U.S. Senate seniority list

Rank	Historical rank	Senator	Party	State	Seniority date	Other factors
1	1692	Patrick Leahy	Democratic	Vermont	January 3, 1975
2	1743	Chuck Grassley	Republican	Iowa	January 3, 1981
3	1766	Mitch McConnell	Republican	Kentucky	January 3, 1985
4	1775	Richard Shelby	Republican	Alabama	January 3, 1987
5	1801	Dianne Feinstein	Democratic	California	November 10, 1992
6	1810	Patty Murray	Democratic	Washington	January 3, 1993
7	1816	Jim Inhofe	Republican	Oklahoma	November 17, 1994
8	1827	Ron Wyden	Democratic	Oregon	February 6, 1996
9	1831	Dick Durbin	Democratic	Illinois	January 3, 1997	Former member of the U.S. House of Representatives (14 years)
10	1835	Jack Reed	Democratic	Rhode Island		Former member of the U.S. House of Representatives (6 years)
11	1842	Susan Collins	Republican	Maine
12	1844	Chuck Schumer	Democratic	New York	January 3, 1999	Former member of the U.S. House of Representatives (18 years)
13	1846	Mike Crapo	Republican	Idaho		Former member of the U.S. House of Representatives (6 years)
14	1855	Tom Carper	Democratic	Delaware	January 3, 2001	Former member of the U.S. House of Representatives (10 years)
15	1856	Debbie Stabenow	Democratic	Michigan		Former member of the U.S. House of Representatives (4 years)
16	1859	Maria Cantwell [6]	Democratic	Washington		Former member of the U.S. House of Representatives (2 years)
17	1873	John Cornyn	Republican	Texas	December 1, 2002
18	1867	Lisa Murkowski	Republican	Alaska	December 20, 2002
19	1869	Lindsey Graham	Republican	South Carolina	January 3, 2003
20	1876	Richard Burr	Republican	North Carolina	January 3, 2005	Former member of the U.S. House of Representatives (10 years)
21	1879	John Thune	Republican	South Dakota		Former member of the U.S. House of Representatives (6 years)
22	1885	Bob Menendez	Democratic	New Jersey	January 18, 2006
23	1886	Ben Cardin	Democratic	Maryland	January 3, 2007	Former member of the U.S. House of Representatives (20 years)
24	1887	Bernie Sanders	Independent [7]	Vermont		Former member of the U.S. House of Representatives (16 years)
25	1888	Sherrod Brown	Democratic	Ohio		Former member of the U.S. House of Representatives (14 years)
26	1890	Bob Casey, Jr.	Democratic	Pennsylvania		Pennsylvania 6th in population (2000)
27	1893	Amy Klobuchar	Democratic	Minnesota		Minnesota 21st in population (2000)
28	1894	Sheldon Whitehouse	Democratic	Rhode Island		Rhode Island 43rd in population (2000)
29	1895	Jon Tester	Democratic	Montana		Montana 44th in population (2000)
30	1896	John Barrasso	Republican	Wyoming	June 25, 2007
31	1897	Roger Wicker	Republican	Mississippi	December 31, 2007
32	1901	Jeanne Shaheen	Democratic	New Hampshire	January 3, 2009	Former governor (6 years)
33	1902	Mark Warner	Democratic	Virginia		Former governor (4 years)
34	1903	Jim Risch	Republican	Idaho		Former governor (7 months)
35	1905	Jeff Merkley	Democratic	Oregon
36	1909	Michael Bennet	Democratic	Colorado	January 21, 2009
37	1910	Kirsten Gillibrand	Democratic	New York	January 26, 2009
38	1916	Joe Manchin	Democratic	West Virginia	November 15, 2010	Former governor
39	1917	Chris Coons	Democratic	Delaware
40	1919	Roy Blunt	Republican	Missouri	January 3, 2011	Former member of the U.S. House of Representatives (14 years); Missouri 17th in population (2000)
41	1920	Jerry Moran	Republican	Kansas		Former member of the U.S. House of Representatives (14 years); Kansas 32nd in population (2000)
42	1921	Rob Portman	Republican	Ohio		Former member of the U.S. House of Representatives (12 years)
43	1922	John Boozman	Republican	Arkansas		Former member of the U.S. House of Representatives (9 years)
44	1923	Pat Toomey	Republican	Pennsylvania		Former member of the U.S. House of Representatives (6 years)
45	1924	John Hoeven	Republican	North Dakota		Former governor
46	1925	Marco Rubio	Republican	Florida		Florida 4th in population (2000)
47	1926	Ron Johnson	Republican	Wisconsin		Wisconsin 18th in population (2000)
48	1927	Rand Paul	Republican	Kentucky		Kentucky 25th in population (2000)
49	1928	Richard Blumenthal	Democratic	Connecticut		Connecticut 29th in population (2000)
50	1929	Mike Lee	Republican	Utah		Utah 34th in population (2000)
51	1932	Brian Schatz	Democratic	Hawaii	December 27, 2012
52	1933	Tim Scott	Republican	South Carolina	January 2, 2013
53	1934	Tammy Baldwin	Democratic	Wisconsin	January 3, 2013	Former member of the U.S. House of Representatives (14 years)
54	1937	Chris Murphy	Democratic	Connecticut		Former member of the U.S. House of Representatives (6 years); Connecticut 29th in population (2010)
55	1938	Mazie Hirono	Democratic	Hawaii		Former member of the U.S. House of Representatives (6 years); Hawaii 42nd in population (2010)
56	1939	Martin Heinrich	Democratic	New Mexico		Former member of the U.S. House of Representatives (4 years)
57	1940	Angus King	Independent	Maine		Former governor (8 years)
58	1941	Tim Kaine	Democratic	Virginia		Former governor (4 years)
59	1942	Ted Cruz	Republican	Texas		Texas 2nd in population (2010)
60	1943	Elizabeth Warren	Democratic	Massachusetts		Massachusetts 15th in population (2010)
61	1944	Deb Fischer	Republican	Nebraska		Nebraska 38th in population (2010)
62	1948	Ed Markey	Democratic	Massachusetts	July 16, 2013
63	1949	Cory Booker	Democratic	New Jersey	October 31, 2013
64	1951	Shelley Moore Capito	Republican	West Virginia	January 3, 2015	Former member of the U.S. House of Representatives (14 years)
65	1952	Gary Peters	Democratic	Michigan		Former member of the U.S. House of Representatives (6 years); Michigan 9th in population (2010)
66	1953	Bill Cassidy	Republican	Louisiana		Former member of the U.S. House of Representatives (6 years); Louisiana 25th in population (2010)
67	1955	James Lankford	Republican	Oklahoma		Former member of the U.S. House of Representatives (4 years)
68	1956	Tom Cotton	Republican	Arkansas		Former member of the U.S. House of Representatives (2 years); Arkansas 32nd in population (2010)
69	1957	Steve Daines	Republican	Montana		Former member of the U.S. House of Representatives (2 years); Montana 44th in population (2010)
70	1958	Mike Rounds	Republican	South Dakota		Former governor
71	1960	Thom Tillis	Republican	North Carolina		North Carolina 10th in population (2010)
72	1961	Joni Ernst	Republican	Iowa		Iowa 30th in population (2010)
73	1962	Ben Sasse	Republican	Nebraska		Nebraska 38th in population (2010)
74	1963	Dan Sullivan	Republican	Alaska		Alaska 47th in population (2010)
75	1964	Chris Van Hollen	Democratic	Maryland	January 3, 2017	Former member of the U.S. House of Representatives (14 years)
76	1965	Todd Young	Republican	Indiana		Former member of the U.S. House of Representatives (6 years)
77	1966	Tammy Duckworth	Democratic	Illinois		Former member of the U.S. House of Representatives (4 years)
78	1967	Maggie Hassan	Democratic	New Hampshire		Former governor
79	1968	Kamala Harris [8]	Democratic	California		California 1st in population (2010)
80	1969	John Neely Kennedy	Republican	Louisiana		Louisiana 25th in population (2010)
81	1970	Catherine Cortez Masto	Democratic	Nevada		Nevada 35th in population (2010)
82	1972	Tina Smith	Democratic	Minnesota	January 3, 2018
83	1974	Cindy Hyde-Smith	Republican	Mississippi	April 2, 2018
84	1975	Marsha Blackburn	Republican	Tennessee	January 3, 2019	Former member of the U.S. House of Representatives (16 years)
85	1976	Kyrsten Sinema	Democratic	Arizona		Former member of the U.S. House of Representatives (6 years); Arizona 16th in population (2010)
86	1977	Kevin Cramer	Republican	North Dakota		Former member of the U.S. House of Representatives (6 years); North Dakota 48th in population (2010)
87	1979	Jacky Rosen	Democratic	Nevada		Former member of the U.S. House of Representatives (2 years)
88	1980	Mitt Romney	Republican	Utah		Former governor
89	1981	Mike Braun	Republican	Indiana		Indiana 15th in population (2010)
90	1982	Josh Hawley	Republican	Missouri		Missouri 18th in population (2010)
91	1983	Rick Scott	Republican	Florida	January 8, 2019
92	1984	Kelly Loeffler [9]	Republican	Georgia	January 6, 2020
93	1985	Mark Kelly	Democratic	Arizona	December 2, 2020
94	1986	Ben Ray Luján	Democratic	New Mexico	January 3, 2021	Former member of the U.S. House of Representatives (12 years)
95	1987	Cynthia Lummis	Republican	Wyoming		Former member of the U.S. House of Representatives (8 years)
96	1988	Roger Marshall	Republican	Kansas		Former member of the U.S. House of Representatives (4 years)
97	1989	John Hickenlooper	Democratic	Colorado		Former governor
98	1990	Bill Hagerty	Republican	Tennessee		Tennessee 17th in population (2010)
99	1991	Tommy Tuberville	Republican	Alabama		Alabama 23rd in population (2010)
	1992	Alex Padilla [8]	Democratic	California	January 20, 2021	California 1st in population (2010)
100	1993	Jon Ossoff [10]	Democratic	Georgia		Georgia 9th in population (2010)
	1994	Raphael Warnock [9]	Democratic	Georgia

See also

• 117th United States Congress
• List of members of the United States House of Representatives in the 117th Congress by seniority
• Seniority in the United States Senate

Notes

1. A Chronological List of United States Senators 1789–Present, via www.senate.gov
2. 1971 U.S Census Report Contains 1970 Census results.
3. 1981 U.S Census Report Contains 1980 Census results.
4. 1991 U.S Census Report Contains 1990 Census results.
5. "2000 Census State Population Rankings". Archived from the original on 2020-02-12. Retrieved 2019-01-03.
6. Cantwell is the Senate's most senior junior senator.
7. Although Sanders was a candidate for the 2016 Democratic presidential nomination, and votes with the Democrats for organizational purposes, he has been elected and classified as an Independent throughout his time in Congress.
8. In California, Kamala Harris (D) resigned January 18, 2021. She was replaced by Alex Padilla (D), who was appointed by Governor Gavin Newsom.
9. In Georgia, Kelly Loeffler (R) was replaced by Raphael Warnock (D), who won the Jan. 5, 2021 special election runoff to complete Johnny Isakson's term.
10. Ossoff is the Senate's most junior senior senator.

External links

• "SENATORS OF THE UNITED STATES / 1789–present / A chronological list of senators since the First Congress in 1789" (PDF). senate.gov. United States Senate.