Class 1Class 1 U.S. senators belong to the electoral cycle that has recently been contested in 2008 (special election), 2012, 2018, and 2024. The next election will be in 2030.
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C
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Class 2Class 2 U.S. senators belong to the electoral cycle that has recently been contested in 2008, 2014, 2018 (special election) and 2020. The next election will be in 2026.
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#
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Senator
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Party
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Dates in office
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Electoral history
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T
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T
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Electoral history
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Dates in office
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Party
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Senator
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#
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1
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Walter Leake
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Democratic- Republican
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Dec 10, 1817 – May 15, 1820
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Elected in 1817.Resigned.
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1
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15th
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1
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Elected in 1817.
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Dec 10, 1817 – Mar 4, 1829
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Democratic- Republican
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Thomas Hill Williams
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1
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16th
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Vacant
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May 15, 1820 – Aug 30, 1820
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2
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David Holmes
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Democratic- Republican
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Aug 30, 1820 – Sep 25, 1825
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Elected to finish Leake's term.
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Re-election year unknown.Resigned to become Governor of Mississippi.
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2
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17th
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18th
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2
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Re-elected in 1823.
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Jacksonian
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19th
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Jacksonian
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Vacant
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Sep 25, 1825 – Sep 28, 1825
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3
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Powhatan Ellis
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Jacksonian
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Sep 28, 1825 – Jan 28, 1826
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Appointed to continue Holmes's term.Lost election to finish Holmes's term.
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4
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Thomas Buck Reed
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Jacksonian
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Jan 28, 1826 – Mar 4, 1827
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Elected to finish Holmes's term.Lost election to full term.
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5
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Powhatan Ellis
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Jacksonian
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Mar 4, 1827 – Jul 16, 1832
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Election year unknown.Resigned to become a U.S. District Judge.
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3
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20th
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21st
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3
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Elected in 1828.Died.
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Mar 4, 1829 – Nov 26, 1829
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Jacksonian
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Thomas Buck Reed
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2
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Nov 26, 1829 – Jan 6, 1830
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Vacant
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Elected to finish Reed's term.Died.
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Jan 6, 1830 – Jul 2, 1830
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Jacksonian
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Robert H. Adams
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3
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Jul 2, 1830 – Oct 15, 1830
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Vacant
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Appointed to continue Adams's term.Elected in 1830 to finish Adams's term.Lost re-election.
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Oct 15, 1830 – Mar 4, 1835
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Jacksonian
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George Poindexter
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4
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22nd
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National Republican
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Vacant
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Jul 16, 1832 – Nov 12, 1832
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6
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John Black
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Jacksonian
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Nov 12, 1832 – Mar 4, 1833
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Appointed to finish Ellis's term.
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Vacant
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Mar 4, 1833 – Nov 22, 1833
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Legislature failed to elect.
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4
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23rd
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John Black
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National Republican
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Nov 22, 1833 – Jan 22, 1838
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Elected late.Resigned.
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24th
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4
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Elected in 1835.
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Mar 4, 1835 – Mar 5, 1845
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Jacksonian
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Robert J. Walker
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5
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Whig
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25th
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Democratic
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7
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James F. Trotter
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Democratic
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Jan 22, 1838 – Jul 10, 1838
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Appointed to continue Black's term.Resigned.
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Vacant
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Jul 10, 1838 – Nov 12, 1838
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8
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Thomas H. Williams
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Democratic
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Nov 12, 1838 – Mar 4, 1839
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Appointed to continue Black's term.Elected in 1839 to finish Black's term.[data missing].
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9
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John Henderson
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Whig
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Mar 4, 1839 – Mar 4, 1845
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Elected in 1838.[data missing].
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5
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26th
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27th
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5
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Re-elected in 1841.Resigned to become U.S. Secretary of the Treasury.
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28th
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10
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Jesse Speight
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Democratic
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Mar 4, 1845 – May 1, 1847
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Elected in 1844.Died.
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6
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29th
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Mar 5, 1845 – Nov 3, 1845
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Vacant
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Appointed to continue Walker's term.Elected in 1846 to finish Walker's term.[data missing].
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Nov 3, 1845 – Mar 4, 1847
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Democratic
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Joseph W. Chalmers
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6
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30th
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6
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Elected in 1846 or 1847.Resigned to become Governor of Mississippi.
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Mar 4, 1847 – Jan 8, 1852
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Democratic
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Henry S. Foote
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7
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Vacant
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May 1, 1847 – Aug 10, 1847
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11
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Jefferson Davis
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Democratic
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Aug 10, 1847 – Sep 23, 1851
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Appointed to continue Speight's term.Elected in 1848 to finish Speight's term.
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31st
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Re-elected in 1850.Resigned to run for Governor of Mississippi.
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7
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32nd
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Vacant
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Sep 23, 1851 – Dec 1, 1851
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12
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John J. McRae
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Democratic
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Dec 1, 1851 – Mar 17, 1852
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Appointed to continue Davis's term.Successor elected.
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Jan 8, 1852 – Feb 18, 1852
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Vacant
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Elected to finish Foote's term.Retired.
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Feb 18, 1852 – Mar 4, 1853
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Whig
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Walker Brooke
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8
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13
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Stephen Adams
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Democratic
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Mar 17, 1852 – Mar 4, 1857
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Elected to finish Davis's term.[data missing].
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33rd
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7
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Mar 4, 1853 – Jan 7, 1854
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Vacant
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Elected late in 1854
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Jan 7, 1854 – Jan 12, 1861
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Democratic
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Albert G. Brown
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9
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34th
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14
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Jefferson Davis
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Democratic
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Mar 4, 1857 – Jan 21, 1861
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Elected in 1856 or 1857.Resigned.
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8
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35th
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36th
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8
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Re-elected in 1859.Withdrew.
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Civil War and Reconstruction
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Jan 12, 1861 – Feb 23, 1870
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Vacant
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Vacant
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Jan 21, 1861 – Feb 23, 1870
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Civil War and Reconstruction
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37th
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9
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38th
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39th
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9
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40th
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10
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41st
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15
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Adelbert Ames
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Republican
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Feb 23, 1870 – Jan 4, 1874
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Elected in 1870 upon readmission.Resigned to become Governor of Mississippi.
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Elected in 1870 upon readmission.[data missing].
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Feb 23, 1870 – Mar 4, 1871
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Republican
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Hiram R. Revels
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10
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42nd
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10
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Mar 4, 1871 – Dec 1, 1871
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Vacant
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Elected in 1870, but remained Governor until Dec 1871.[data missing].
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Dec 1, 1871 – Mar 4, 1877
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Republican
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James L. Alcorn
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11
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43rd
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Vacant
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Jan 4, 1874 – Feb 3, 1874
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16
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Henry R. Pease
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Republican
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Feb 3, 1874 – Mar 4, 1875
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Elected to finish Ames's term.Retired.
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17
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Blanche Bruce
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Republican
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Mar 4, 1875 – Mar 4, 1881
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Elected in 1874.[data missing].
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11
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44th
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45th
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11
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Elected in 1876.
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Mar 4, 1877 – Mar 6, 1885
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Democratic
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Lucius Q. C. Lamar
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12
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46th
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18
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James Z. George
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Democratic
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Mar 4, 1881 – Aug 14, 1897
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Elected in 1880.
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12
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47th
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48th
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12
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Re-elected in 1883.Resigned.
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49th
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Mar 6, 1885 – Mar 9, 1885
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Vacant
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Appointed to continue Lamar's term.Elected in 1886 to finish Lamar's term.
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Mar 9, 1885 – Jan 24, 1894
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Democratic
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Edward C. Walthall
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13
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Re-elected in 1886.
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13
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50th
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51st
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13
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Re-elected in 1889.Resigned.
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52nd
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Re-elected in 1892.[3]Died.
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14
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53rd
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Jan 24, 1894 – Feb 7, 1894
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Vacant
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Elected to finish Walthall's term.[data missing].
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Feb 7, 1894 – Mar 4, 1895
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Democratic
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Anselm J. McLaurin
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14
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54th
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14
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Elected early in 1892.[3]Died.
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Mar 4, 1895 – Apr 21, 1898
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Democratic
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Edward C. Walthall
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15
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55th
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Vacant
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Aug 14, 1897 – Oct 8, 1897
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19
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Hernando Money
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Democratic
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Oct 8, 1897 – Mar 4, 1911
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Appointed to finish George's term.
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Apr 21, 1898 – May 31, 1898
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Vacant
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Appointed to continue Walthall's term.Elected in 1900 to finish Walthall's term.Retired.
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May 31, 1898 – Mar 4, 1901
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Democratic
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William V. Sullivan
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16
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Elected to full term in 1899.
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15
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56th
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57th
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15
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Elected in 1900.
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Mar 4, 1901 – Dec 22, 1909
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Democratic
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Anselm J. McLaurin
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17
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58th
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Re-elected in 1904.[5]Retired.
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16
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59th
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60th
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16
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Re-elected early in 1904.[5]Died.
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61st
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Dec 22, 1909 – Dec 27, 1909
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Vacant
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Appointed to continue McLaurin's term.Successor qualified.
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Dec 27, 1909 – Feb 22, 1910
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Democratic
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James Gordon
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18
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Elected to finish McLaurin's term.Lost nomination to full term.
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Feb 23, 1910 – Mar 4, 1913
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Democratic
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LeRoy Percy
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19
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20
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John Sharp Williams
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Democratic
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Mar 4, 1911 – Mar 4, 1923
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Elected early in 1908.
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17
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62nd
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63rd
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17
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Elected in 1912.Lost renomination.
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Mar 4, 1913 – Mar 4, 1919
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Democratic
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James K. Vardaman
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20
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64th
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Re-elected in 1916.Retired.
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18
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65th
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66th
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18
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Elected in 1918.
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Mar 4, 1919 – Jun 22, 1941
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Democratic
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Pat Harrison
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21
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67th
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21
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Hubert D. Stephens
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Democratic
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Mar 4, 1923 – Jan 3, 1935
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Elected in 1922.
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19
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68th
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69th
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19
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Re-elected in 1924.
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70th
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Re-elected in 1928.Lost renomination.
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20
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71st
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72nd
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20
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Re-elected in 1930.
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73rd
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22
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Theodore G. Bilbo
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Democratic
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Jan 3, 1935 – Aug 21, 1947
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Elected in 1934.
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21
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74th
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75th
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21
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Re-elected in 1936.Died.
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76th
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Re-elected in 1940.
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22
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77th
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Jun 22, 1941 – Jun 30, 1941
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Vacant
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Appointed to continue Harrison's term.Retired when successor elected.
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Jun 30, 1941 – Sep 28, 1941
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Democratic
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James Eastland
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22
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Elected to finish Harrison's term.Lost renomination.
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Sep 29, 1941 – Jan 3, 1943
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Democratic
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Wall Doxey
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23
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78th
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22
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Elected in 1942.
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Jan 3, 1943 – Dec 27, 1978
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Democratic
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James Eastland
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24
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79th
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Re-elected in 1946.Died.
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23
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80th
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Vacant
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Aug 21, 1947 – Nov 5, 1947
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23
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John C. Stennis
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Democratic
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Nov 5, 1947 – Jan 3, 1989
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Elected to finish Bilbo's term.
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81st
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23
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Re-elected in 1948.
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82nd
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Re-elected in 1952.
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24
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83rd
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84th
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24
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Re-elected in 1954.
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85th
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Re-elected in 1958.
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25
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86th
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87th
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25
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Re-elected in 1960.
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88th
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Re-elected in 1964.
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26
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89th
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90th
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26
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Re-elected in 1966.
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91st
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Re-elected in 1970.
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27
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92nd
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93rd
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27
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Re-elected in 1972.Retired, and resigned early to give successor preferential seniority.
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94th
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Re-elected in 1976.
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28
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95th
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Appointed early to finish Eastland's term, having already been elected to the next term.
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Dec 27, 1978 – Apr 1, 2018
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Republican
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Thad Cochran
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25
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96th
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28
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Elected in 1978.
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97th
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Re-elected in 1982.Retired.
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29
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98th
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99th
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29
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Re-elected in 1984.
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100th
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24
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Trent Lott
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Republican
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Jan 3, 1989 – Dec 18, 2007
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Elected in 1988.
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30
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101st
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102nd
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30
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Re-elected in 1990.
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103rd
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Re-elected in 1994.
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31
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104th
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105th
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31
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Re-elected in 1996.
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106th
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Re-elected in 2000.
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32
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107th
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108th
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32
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Re-elected in 2002.
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109th
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Re-elected in 2006.Resigned.
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33
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110th
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Vacant
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Dec 18, 2007 – Dec 31, 2007
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25
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Roger Wicker
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Republican
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Dec 31, 2007 – present
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Appointed to continue Lott's term.Elected in 2008 to finish Lott's term.
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111th
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33
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Re-elected in 2008.
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112th
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Re-elected in 2012.
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34
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113th
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114th
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34
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Re-elected in 2014.Resigned.
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115th
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Appointed to continue Cochran's term.Elected in 2018 in runoff election to finish Cochran's term.
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Apr 2, 2018 – present
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Republican
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Cindy Hyde-Smith
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26
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Re-elected in 2018.
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35
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116th
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117th
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35
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Re-elected in 2020.
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118th
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Re-elected in 2024.
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36
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119th
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120th
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36
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To be determined in the 2026 election.
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#
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Senator
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Party
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Years in office
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Electoral history
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T
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C
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T
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Electoral history
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Years in office
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Party
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Senator
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#
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Class 1
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Class 2
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