List of United States Senators in the 114th Congress by seniority
For a listing of current Senators, see Seniority in the United States Senate.
This is a classification of United States Senators by seniority from January 3, 2015 to January 3, 2017. 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.
Currently, Barbara Boxer (California) is the most senior junior senator and Deb Fischer (Nebraska) is the most junior senior senator.
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]
| Rank | Name | Seniority date | Other factors |
|---|---|---|---|
| 1 | Patrick Leahy (D-VT) | January 3, 1975 | |
| 2 | Orrin Hatch (R-UT) | January 3, 1977 | |
| 3 | Thad Cochran (R-MS) | December 27, 1978 | |
| 4 | Chuck Grassley (R-IA) | January 3, 1981 | |
| 5 | Mitch McConnell (R-KY) | January 3, 1985 | |
| 6 | Barbara Mikulski (D-MD) | January 3, 1987 | Former U.S. Representative (10 years) |
| 7 | Richard Shelby (R-AL) | Former U.S. Representative (8 years) | |
| 8 | John McCain (R-AZ) | Former U.S. Representative (4 years); Arizona 29th in population (1980) | |
| 9 | Harry Reid (D-NV) | Former U.S. Representative (4 years); Nevada 43rd in population (1980) | |
| 10 | Dianne Feinstein (D-CA) | November 10, 1992 | |
| 11 | Barbara Boxer (D-CA) | January 3, 1993 | Former U.S. Representative |
| 12 | Patty Murray (D-WA) | ||
| 13 | Jim Inhofe (R-OK) | November 17, 1994 | |
| 14 | Ron Wyden (D-OR) | February 6, 1996 | |
| 15 | Pat Roberts (R-KS) | January 3, 1997 | Former U.S. Representative (16 years) |
| 16 | Richard Durbin (D-IL) | Former U.S. Representative (14 years) | |
| 17 | Jack Reed (D-RI) | Former U.S. Representative (6 years) | |
| 18 | Jeff Sessions (R-AL) | Alabama 22nd in population (1990) | |
| 19 | Susan Collins (R-ME) | Maine 38th in population (1990) | |
| 20 | Mike Enzi (R-WY) | Wyoming 50th in population (1990) | |
| 21 | Chuck Schumer (D-NY) | January 3, 1999 | Former U.S. Representative (18 years) |
| 22 | Mike Crapo (R-ID) | Former U.S. Representative (6 years) | |
| 23 | Bill Nelson (D-FL) | January 3, 2001 | Former U.S. Representative (12 years) |
| 24 | Tom Carper (D-DE) | Former U.S. Representative (10 years) | |
| 25 | Debbie Stabenow (D-MI) | Former U.S. Representative (4 years) | |
| 26 | Maria Cantwell (D-WA) | Former U.S. Representative (2 years) | |
| 27 | Lisa Murkowski (R-AK) | December 20, 2002 | |
| 28 | Lindsey Graham (R-SC) | January 3, 2003 | Former U.S. Representative |
| 29 | Lamar Alexander (R-TN) | Former Cabinet member | |
| 30 | John Cornyn[6] (R-TX) | ||
| 31 | Richard Burr (R-NC) | January 3, 2005 | Former U.S. Representative (10 years) |
| 32 | John Thune (R-SD) | Former U.S. Representative (6 years) | |
| 33 | Johnny Isakson (R-GA) | Former U.S. Representative (5 years, 10 months) | |
| 34 | David Vitter (R-LA) | Former U.S. Representative (5 years, 7 months) | |
| 35 | Bob Menendez (D-NJ) | January 18, 2006 | |
| 36 | Ben Cardin (D-MD) | January 3, 2007 | Former U.S. Representative (20 years) |
| 37 | Bernie Sanders (I-VT) | Former U.S. Representative (16 years) | |
| 38 | Sherrod Brown (D-OH) | Former U.S. Representative (14 years) | |
| 39 | Bob Casey, Jr. (D-PA) | Pennsylvania 6th in population (2000) | |
| 40 | Bob Corker (R-TN) | Tennessee 16th in population (2000) | |
| 41 | Claire McCaskill (D-MO) | Missouri 17th in population (2000) | |
| 42 | Amy Klobuchar (D-MN) | Minnesota 21st in population (2000) | |
| 43 | Sheldon Whitehouse (D-RI) | Rhode Island 43rd in population (2000) | |
| 44 | Jon Tester (D-MT) | Montana 44th in population (2000) | |
| 45 | John Barrasso (R-WY) | June 25, 2007 | |
| 46 | Roger Wicker (R-MS) | December 31, 2007 | |
| 47 | Tom Udall (D-NM) | January 3, 2009 | Former U.S. Representative (10 years) |
| 48 | Jeanne Shaheen (D-NH) | Former Governor (6 years) | |
| 49 | Mark Warner (D-VA) | Former Governor (4 years) | |
| 50 | Jim Risch (R-ID) | Former Governor (7 months) | |
| 51 | Jeff Merkley (D-OR) | Oregon 28th in population (2000) | |
| 52 | Michael Bennet (D-CO) | January 21, 2009 | |
| 53 | Kirsten Gillibrand (D-NY) | January 26, 2009 | |
| 54 | Al Franken (D-MN) | July 7, 2009 | |
| 55 | Joe Manchin (D-WV) | November 15, 2010 | Former Governor |
| 56 | Chris Coons (D-DE) | ||
| 57 | Mark Kirk (R-IL) | November 29, 2010 | |
| 58 | Dan Coats (R-IN) | January 3, 2011 | Former Senator |
| 59 | Roy Blunt (R-MO) | Former U.S. Representative (14 years); Missouri 17th in population (2000) | |
| 60 | Jerry Moran (R-KS) | Former U.S. Representative (14 years); Kansas 32nd in population (2000) | |
| 61 | Rob Portman (R-OH) | Former U.S. Representative (12 years) | |
| 62 | John Boozman (R-AR) | Former U.S. Representative (9 years) | |
| 63 | Pat Toomey (R-PA) | Former U.S. Representative (6 years) | |
| 64 | John Hoeven (R-ND) | Former Governor | |
| 65 | Marco Rubio (R-FL) | Florida 4th in population (2000) | |
| 66 | Ron Johnson (R-WI) | Wisconsin 18th in population (2000) | |
| 67 | Rand Paul (R-KY) | Kentucky 25th in population (2000) | |
| 68 | Richard Blumenthal (D-CT) | Connecticut 29th in population (2000) | |
| 69 | Michael S. Lee (R-UT) | Utah 34th in population (2000) | |
| 70 | Kelly Ayotte (R-NH) | New Hampshire 41st in population (2000) | |
| 71 | Dean Heller (R-NV) | May 9, 2011 | |
| 72 | Brian Schatz (D-HI) | December 27, 2012 | |
| 73 | Tim Scott (R-SC) | January 2, 2013 | |
| 74 | Tammy Baldwin (D-WI) | January 3, 2013 | Former U.S. Representative (14 years) |
| 75 | Jeff Flake (R-AZ) | Former U.S. Representative (12 years) | |
| 76 | Joe Donnelly (D-IN) | Former U.S. Representative (6 years); Indiana 16th in population (2010) | |
| 77 | Chris Murphy (D-CT) | Former U.S. Representative (6 years); Connecticut 29th in population (2010) | |
| 78 | Mazie Hirono (D-HI) | Former U.S. Representative (6 years); Hawaii 42nd in population (2010) | |
| 79 | Martin Heinrich (D-NM) | Former U.S. Representative (4 years) | |
| 80 | Angus King (I-ME) | Former Governor (8 years) | |
| 81 | Tim Kaine (D-VA) | Former Governor (4 years) | |
| 82 | Ted Cruz (R-TX) | Texas 2nd in population (2010) | |
| 83 | Elizabeth Warren (D-MA) | Massachusetts 15th in population (2010) | |
| 84 | Deb Fischer (R-NE) | Nebraska 38th in population (2010) | |
| 85 | Heidi Heitkamp (D-ND) | North Dakota 48th in population (2010) | |
| 86 | Ed Markey (D-MA) | July 16, 2013 | |
| 87 | Cory Booker (D-NJ) | October 31, 2013 | |
| 88 | Shelley Moore Capito (R-WV) | January 3, 2015 | Former U.S. Representative (14 years) |
| 89 | Gary Peters (D-MI) | Former U.S. Representative (6 years); Michigan 9th in population (2010) | |
| 90 | Bill Cassidy (R-LA) | Former U.S. Representative (6 years); Louisiana 25th in population (2010) | |
| 91 | Cory Gardner (R-CO) | Former U.S. Representative (4 years); Colorado 22nd in population (2010) | |
| 92 | James Lankford (R-OK) | Former U.S. Representative (4 years); Oklahoma 28th in population (2010) | |
| 93 | Tom Cotton (R-AR) | Former U.S. Representative (2 years); Arkansas 32nd in population (2010) | |
| 94 | Steve Daines (R-MT) | Former U.S. Representative (2 years); Montana 44th in population (2010) | |
| 95 | Mike Rounds (R-SD) | Former Governor | |
| 96 | David Perdue (R-GA) | Georgia 8th in population (2010) | |
| 97 | Thom Tillis (R-NC) | North Carolina 10th in population (2010) | |
| 98 | Joni Ernst (R-IA) | Iowa 30th in population (2010) | |
| 99 | Ben Sasse (R-NE) | Nebraska 37th in population (2010) | |
| 100 | Dan Sullivan (R-AK) | Alaska 47th in population (2010) |
Notes
- ↑ A Chronological List of United States Senators 1789-Present, via www.senate.gov
- ↑ 1971 U.S Census Report Contains 1970 Census results.
- ↑ 1981 U.S Census Report Contains 1980 Census results.
- ↑ 1991 U.S Census Report Contains 1990 Census results.
- ↑ 2000 Census State Population Rankings
- ↑ John Cornyn's predecessor, Phil Gramm, resigned early so Cornyn could be seated on December 2, 2002, and move into Gramm's office suite to begin organizing his staff. Cornyn did not, however, gain seniority, owing to a 1980 Rules Committee policy that no longer gave seniority to senators who entered Congress early for the purpose of gaining advantageous office space.
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