This is a complete list of United States senators during the 114th United States Congress listed by seniority from January 3, 2015, to January 3, 2017.

In this Congress, Barbara Boxer (D-California) was the most senior junior senator and Deb Fischer (R-Nebraska) was the most junior senior senator.

Sometimes a senator is sworn in during the middle of the two-year Congress. This did not occur in this Congress.

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 their 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.A Chronological List of United States Senators 1789-Present, via www.senate.gov1971 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.

Terms of service

ClassTerms of service of senators that expired in yearsClass 3Terms of service of senators that expired in 2017 (Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Idaho, Illinois, Iowa, Indiana, Kansas, Kentucky, Louisiana, Massachusetts, Maine, Michigan, Minnesota, Mississippi, North Carolina, North Dakota, New Hampshire, New Mexico, Nevada, New York, Oklahoma, Oregon, South Carolina, South Dakota, Tennessee, Utah, Washington and Wisconsin.)Terms of service of senators that expired in 2017.Class 1Terms of service of senators that expired in 2019 (Arizona, California, Connecticut, Delaware, Florida, Hawaii, Indiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Jersey, New Mexico, New York, North Dakota, Ohio, Pennsylvania, Rhode Island, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, and Wyoming.)Terms of service of senators that expired in 2019.Class 2Terms of service of senators that expired in 2021 (Alabama, Alaska, Arkansas, Colorado, Delaware, Georgia, Iowa, Idaho, Illinois, Kansas, Kentucky, Louisiana, Massachusetts, Maine, Michigan, Minnesota, Mississippi, Montana, North Carolina, Nebraska, New Hampshire, New Jersey, New Mexico, Oklahoma, Oregon, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Virginia, West Virginia, and Wyoming.)Terms of service of senators that expired in 2021.

U.S. Senate seniority list Currentrank Historicalrank Senator Party State Seniority date Other factors 1 1692 Democratic Vermont January 3, 1975   2 1708 Republican Utah January 3, 1977 3 1719 Republican Mississippi December 27, 1978 4 1743 Republican Iowa January 3, 1981 5 1766 Republican Kentucky January 3, 1985 6 1773 Democratic Maryland January 3, 1987 Former member of the U.S. House of Representatives (10 years) 7 1775 Republican Alabama Former member of the U.S. House of Representatives (8 years) 8 1777 Republican Arizona Former member of the U.S. House of Representatives (4 years);Arizona 29th in population (1980) 9 1778 Democratic Nevada Former member of the U.S. House of Representatives (4 years);Nevada 43rd in population (1980) 10 1801 Democratic California November 10, 1992 11 1804 Democratic California January 3, 1993 Former member of the U.S. House of Representatives 12 1812 Democratic Washington   13 1816 Republican Oklahoma November 17, 1994 14 1827 Democratic Oregon February 6, 1996 15 1830 Republican Kansas January 3, 1997 Former member of the U.S. House of Representatives (16 years) 16 1831 Democratic Illinois Former member of the U.S. House of Representatives (14 years) 17 1835 DemocraticRhode Island Former member of the U.S. House of Representatives (6 years) 18 1839 Republican Alabama Alabama 22nd in population (1990) 19 1842 Republican Maine Maine 38th in population (1990) 20 1843 Republican Wyoming Wyoming 50th in population (1990) 21 1844 Democratic New York January 3, 1999 Former member of the U.S. House of Representatives (18 years) 22 1846 Republican Idaho Former member of the U.S. House of Representatives (6 years) 23 1854 Democratic Florida January 3, 2001 Former member of the U.S. House of Representatives (12 years) 24 1855 Democratic Delaware Former member of the U.S. House of Representatives (10 years) 25 1856 Democratic Michigan Former member of the U.S. House of Representatives (4 years) 26 1859 Democratic Washington Former member of the U.S. House of Representatives (2 years) 27 1873 Republican Texas December 2, 2002   28 1867 Republican Alaska December 20, 2002 29 1869 Republican South Carolina January 3, 2003 Former member of the U.S. House of Representatives 30 1871 Republican Tennessee   31 1876 Republican North Carolina January 3, 2005 Former member of the U.S. House of Representatives (10 years) 32 1879 Republican South Dakota Former member of the U.S. House of Representatives (6 years) 33 1880 Republican Georgia Former member of the U.S. House of Representatives (5 years, 10 months) 34 1881 Republican Louisiana Former member of the U.S. House of Representatives (5 years, 7 months) 35 1885 Democratic New Jersey January 18, 2006   36 1886 Democratic Maryland January 3, 2007 Former member of the U.S. House of Representatives (20 years) 37Bernie Sanders's 2015–2016 party change did not break his service or seniority. 1887 Independent Vermont Former member of the U.S. House of Representatives (16 years) 38 1888 Democratic Ohio Former member of the U.S. House of Representatives (14 years) 39 1889 Democratic Pennsylvania Pennsylvania 6th in population (2000) 40 1891 Republican Tennessee Tennessee 16th in population (2000) 41 1892 Democratic Missouri Missouri 17th in population (2000) 42 1893 Democratic Minnesota Minnesota 21st in population (2000) 43 1894 Democratic Rhode Island Rhode Island 43rd in population (2000) 44 1895 Democratic Montana Montana 44th in population (2000) 45 1896 Republican Wyoming June 25, 2007   46 1897 Republican Mississippi December 31, 2007 47 1899 Democratic New Mexico January 3, 2009 Former member of the U.S. House of Representatives 48 1901 Democratic New Hampshire Former governor (6 years) 49 1902 Democratic Virginia Former governor (4 years) 50 1903 Republican Idaho Former governor (7 months) 51 1905 Democratic Oregon   52 1909 Democratic Colorado January 21, 2009 53 1910 Democratic New York January 26, 2009 54 1911 Democratic Minnesota July 7, 2009 55 1916 Democratic West Virginia November 15, 2010 Former governor 56 1917 Democratic Delaware   57 1918 Republican Illinois November 29, 2010 58 1785Coats previously served as a U.S. senator. Republican Indiana January 3, 2011 Previously a senator 59 1919 Republican Missouri Former member of the U.S. House of Representatives (14 years);Missouri 17th in population (2000) 60 1920 Republican Kansas Former member of the U.S. House of Representatives (14 years);Kansas 32nd in population (2000) 61 1921 Republican Ohio Former member of the U.S. House of Representatives (12 years) 62 1922 Republican Arkansas Former member of the U.S. House of Representatives (9 years) 63 1923 Republican Pennsylvania Former member of the U.S. House of Representatives (6 years) 64 1924 Republican North Dakota Former governor 65 1925 Republican Florida Florida 4th in population (2000) 66 1926 Republican Wisconsin Wisconsin 18th in population (2000) 67 1927 Republican Kentucky Kentucky 25th in population (2000) 68 1928 Democratic Connecticut Connecticut 29th in population (2000) 69 1929 Republican Utah Utah 34th in population (2000) 70 1930 Republican New Hampshire New Hampshire 41st in population (2000) 71 1931 Republican Nevada May 9, 2011   72 1932 Democratic Hawaii December 27, 2012 73 1933 Republican South Carolina January 2, 2013 74 1934 Democratic Wisconsin January 3, 2013 Former member of the U.S. House of Representatives (14 years) 75 1935 Republican Arizona Former member of the U.S. House of Representatives (12 years) 76 1936 Democratic Indiana Former member of the U.S. House of Representatives (6 years);Indiana 16th in population (2010) 77 1937 Democratic Connecticut Former member of the U.S. House of Representatives (6 years);Connecticut 29th in population (2010) 78 1938 Democratic Hawaii Former member of the U.S. House of Representatives (6 years);Hawaii 42nd in population (2010) 79 1939 Democratic New Mexico Former member of the U.S. House of Representatives (4 years) 80 1940 Independent Maine Former governor (8 years) 81 1941 Democratic Virginia Former governor (4 years) 82 1942 Republican Texas Texas 2nd in population (2010) 83 1943 Democratic Massachusetts Massachusetts 15th in population (2010) 84 1944 Republican Nebraska Nebraska 38th in population (2010) 85 1945 Democratic North Dakota North Dakota 48th in population (2010) 86 1948 Democratic Massachusetts July 16, 2013   87 1949 Democratic New Jersey October 31, 2013 88 1951 Republican West Virginia January 3, 2015 Former member of the U.S. House of Representatives (14 years) 89 1952 Democratic Michigan Former member of the U.S. House of Representatives (6 years);Michigan 9th in population (2010) 90 1953 Republican Louisiana Former member of the U.S. House of Representatives (6 years);Louisiana 25th in population (2010) 91 1954 Republican Colorado Former member of the U.S. House of Representatives (4 years);Colorado 22nd in population (2010) 92 1955 Republican Oklahoma Former member of the U.S. House of Representatives (4 years);Oklahoma 28th in population (2010) 93 1956 Republican Arkansas Former member of the U.S. House of Representatives (2 years);Arkansas 32nd in population (2010) 94 1957 Republican Montana Former member of the U.S. House of Representatives (2 years);Montana 44th in population (2010) 95 1958 Republican South Dakota Former governor 96 1959 Republican Georgia Georgia 8th in population (2010) 97 1960 Republican North Carolina North Carolina 10th in population (2010) 98 1961 Republican Iowa Iowa 30th in population (2010) 99 1962 Republican Nebraska Nebraska 37th in population (2010) 100 1963 Republican Alaska Alaska 47th in population (2010)

The most senior senators by class were Orrin Hatch (R-Utah) from Class 1, Thad Cochran (R-Mississippi) from Class 2, and Patrick Leahy (D-Vermont) from Class 3.

See also 114th United States Congress List of United States representatives in the 114th Congress

Notes

External links