Current delegation
Dick Durbin (D)
Tammy Duckworth (D)

Illinois was admitted to the Union on December 3, 1818, and has been represented in the United States Senate by 47 senators. Senators from Illinois are elected to class 2 and class 3.

The Senate twice refused to seat Frank L. Smith, in December 1926 for an appointed term and in March 1927 for an elected one, due to corruption, but he is included in this list because Smith and the Governor considered him to be a senator for approximately two years.

Of the eight African Americans ever to sit in the U.S. Senate since Reconstruction, three have held Illinois's class 3 seat, including Barack Obama who went on to become the president of the United States. This makes Illinois the state with the most African-American senators. Illinois's current U.S. senators are Democrats Dick Durbin (serving since 1997) and Tammy Duckworth (serving since 2017). Shelby Moore Cullom was the longest serving senator, who served from 1883 to 1913.

List of senators

Class 2

Class 2 U.S. senators belong to the electoral cycle that has recently been contested in 2002, 2008, 2014, and 2020. The next election will be in 2026.

 C

Class 3

Class 3 U.S. senators belong to the electoral cycle that has recently been contested in 2004, 2010, 2016, and 2022. The next election will be in 2028.

# Senator Party Dates in office Electoral history T T Electoral history Dates in office Party Senator #
1
Jesse B. Thomas		 Democratic-
Republican		 Dec 3, 1818 –
Mar 3, 1829		 Elected in 1818. 1 15th 1 Elected in 1818. Dec 3, 1818 –
Mar 3, 1824		 Democratic-
Republican
Ninian Edwards		 1
16th 2 Re-elected in 1819.
Resigned.
17th
Re-elected in 1823.
Retired.		 2 18th
  Mar 4, 1824 –
Nov 24, 1824		 Vacant
Elected to finish Edwards's term.
Retired.		 Nov 24, 1824 –
Mar 3, 1825		 Democratic-
Republican
John McLean		 2
National
Republican		 19th 3 Elected in 1825. Mar 4, 1825 –
Dec 12, 1835		 Jacksonian
Elias Kane		 3
20th
2
John McLean		 Jacksonian Mar 4, 1829 –
Oct 14, 1830		 Elected in 1829.
Died.		 3 21st
Vacant Oct 14, 1830 –
Nov 12, 1830		  
3
David J. Baker		 Jacksonian Nov 12, 1830 –
Dec 11, 1830		 Appointed to continue McLean's term.
Retired.
4
John M. Robinson		 Jacksonian Dec 11, 1830 –
Mar 3, 1841		 Elected to finish McLean's term.
22nd 4 Re-elected in 1831.
Died.
23rd
Re-elected in 1835.
Retired.		 4 24th
  Dec 12, 1835 –
Dec 30, 1835		 Vacant
Appointed to finish Kane's term.
Lost election to full term.		 Dec 30, 1835 –
Mar 3, 1837		 Jacksonian
William Lee D. Ewing		 4
Democratic 25th 5 Elected in 1837.
Retired.		 Mar 4, 1837 –
Mar 3, 1843		 Democratic
Richard M. Young		 5
26th
5
Samuel McRoberts		 Democratic Mar 4, 1841 –
Mar 27, 1843		 Elected in 1841.
Died.		 5 27th
28th 6 Elected in 1843.
Lost renomination.		 Mar 4, 1843 –
Mar 3, 1849		 Democratic
Sidney Breese		 6
Vacant Mar 27, 1843 –
Aug 16, 1843		  
6
James Semple		 Democratic Aug 16, 1843 –
Mar 3, 1847		 Appointed to continue McRoberts's term.
Elected in 1844 to finish McRoberts's term.[1]
Retired.
29th
7
Stephen A. Douglas		 Democratic Mar 4, 1847 –
Jun 3, 1861		 Elected in 1846. 6 30th
31st 7 Elected in 1849.[2]
Election voided.[lower-alpha 1]		 Mar 4, 1849 –
Mar 15, 1849		 Democratic
James Shields		 7
  Mar 15, 1849 –
Oct 27, 1849		 Vacant
Elected to finish his own term.
Lost re-election.		 Oct 27, 1849 –
Mar 3, 1855		 Democratic
James Shields
32nd
Re-elected in 1852. 7 33rd
34th 8 Elected in 1855. Mar 4, 1855 –
Mar 3, 1873		 Democratic
Lyman Trumbull		 8
35th Republican
Re-elected in 1859.
Died.		 8 36th
37th 9 Re-elected in 1861.
Vacant Jun 3, 1861 –
Jun 26, 1861		  
8
Orville Browning		 Republican Jun 26, 1861 –
Jan 12, 1863		 Appointed to continue Douglas's term.
Retired.
9
William A. Richardson		 Democratic Jan 12, 1863 –
Mar 3, 1865		 Elected to finish Douglas's term.
Retired.
38th
10
Richard Yates		 Republican Mar 4, 1865 –
Mar 3, 1871		 Elected in 1864 or 1865.
Retired.		 9 39th
40th 10 Re-elected in 1867.
[data missing]
41st
11
John A. Logan		 Republican Mar 4, 1871 –
Mar 3, 1877		 Elected in 1870 or 1871.
Lost re-election.		 10 42nd Liberal
Republican
43rd 11 Elected in 1873.
Retired.		 Mar 4, 1873 –
Mar 3, 1879		 Republican
Richard J. Oglesby		 9
44th
12
David Davis		 Independent Mar 4, 1877 –
Mar 3, 1883		 Elected in 1877.
Retired.		 11 45th
46th 12 Elected in 1879. Mar 4, 1879 –
Mar 3, 1885		 Republican
John A. Logan		 10
47th
13
Shelby M. Cullom		 Republican Mar 4, 1883 –
Mar 3, 1913		 Elected in 1882. 12 48th
49th 13 Legislature failed to elect. Mar 4, 1885 –
May 18, 1885		 Vacant
Re-elected late in 1885.
Died.		 May 19, 1885 –
Dec 26, 1886		 Republican
John A. Logan
  Dec 26, 1886 –
Jan 19, 1887		 Vacant
Elected to finish Logan's term.
Retired.		 Jan 19, 1887 –
Mar 3, 1891		 Republican
Charles Farwell		 11
50th
Re-elected in 1888. 13 51st
52nd 14 Elected in 1890.
Retired.		 Mar 4, 1891 –
Mar 3, 1897		 Democratic
John Palmer		 12
53rd
Re-elected in 1894. 14 54th
55th 15 Elected in 1897.[3]
Retired.		 Mar 4, 1897 –
Mar 3, 1903		 Republican
William Mason		 13
56th
Re-elected in 1901. 15 57th
58th 16 Elected in 1903.
Lost re-election.		 Mar 4, 1903 –
Mar 3, 1909		 Republican
Albert Hopkins		 14
59th
Re-elected in 1907.[4]
Lost renomination.		 16 60th
61st 17   Mar 4, 1909 –
Jun 18, 1909		 Vacant
Elected in 1909, but ineligible until resignation from U.S. House.
Election voided.		 Jun 18, 1909 –
Jul 13, 1912		 Republican
William Lorimer		 15
62nd
  Jul 13, 1912 –
Mar 26, 1913		 Vacant
Vacant Mar 4, 1913 –
Mar 26, 1913		 Legislature elected late. 17 63rd
14
J. Hamilton Lewis		 Democratic Mar 26, 1913 –
Mar 3, 1919		 Elected late in 1913.
Lost re-election.		 Elected in 1913 to finish Lorimer's term. Mar 26, 1913 –
Mar 3, 1921		 Republican
Lawrence Y. Sherman		 16
64th 18 Re-elected in 1914.
Retired.
65th
15
Medill McCormick		 Republican Mar 4, 1919 –
Feb 25, 1925		 Elected in 1918.
Lost renomination and died just before the end of the term.		 18 66th
67th 19 Elected in 1920.
Lost renomination and died just before the end of the term.		 Mar 4, 1921 –
Dec 7, 1926		 Republican
William B. McKinley		 17
68th
16
Charles S. Deneen		 Republican Feb 26, 1925 –
Mar 3, 1931		 Appointed to finish McCormick's term, having already been elected to the next term.
Elected in 1924.
Lost renomination.		 19 69th
Appointed to continue McKinley's term.
Not seated/resigned.[lower-alpha 2]		 Dec 7, 1926 Republican
Frank L. Smith		 18
  Dec 7, 1926 –
Dec 3, 1928		 Vacant
70th 20
Elected to finish the term.
Lost re-election.		 Dec 3, 1928 –
Mar 3, 1933		 Republican
Otis F. Glenn		 19
71st
17
J. Hamilton Lewis		 Democratic Mar 4, 1931 –
Apr 9, 1939		 Elected in 1930. 20 72nd
73rd 21 Elected in 1932.
Retired.		 Mar 4, 1933 –
Jan 3, 1939		 Democratic
William H. Dieterich		 20
74th
Re-elected in 1936.
Died.		 21 75th
76th 22 Elected in 1938. Jan 3, 1939 –
Jan 3, 1951		 Democratic
Scott W. Lucas		 21
Vacant Apr 9, 1939 –
Apr 14, 1939		  
18
James M. Slattery		 Democratic Apr 14, 1939 –
Nov 21, 1940		 Appointed to continue Lewis's term.
Lost election to finish Lewis's term.
19
C. Wayland Brooks		 Republican Nov 22, 1940 –
Jan 3, 1949		 Elected to finish Lewis's term.
77th
Re-elected in 1942.
Lost re-election.		 22 78th
79th 23 Re-elected in 1944.
Lost re-election.
80th
20
Paul Douglas		 Democratic Jan 3, 1949 –
Jan 3, 1967		 Elected in 1948. 23 81st
82nd 24 Elected in 1950. Jan 3, 1951 –
Sep 7, 1969		 Republican
Everett Dirksen		 22
83rd
Re-elected in 1954. 24 84th
85th 25 Re-elected in 1956.
86th
Re-elected in 1960.
Lost re-election.		 25 87th
88th 26 Re-elected in 1962.
89th
21
Charles H. Percy		 Republican Jan 3, 1967 –
Jan 3, 1985		 Elected in 1966. 26 90th
91st 27 Re-elected in 1968.
Died.
  Sep 7, 1969 –
Sep 17, 1969		 Vacant
Appointed to continue Dirksen's term.
Lost election to finish Dirksen's term.		 Sep 17, 1969 –
Nov 3, 1970		 Republican
Ralph T. Smith		 23
  Nov 3, 1970 –
Nov 17, 1970		 Vacant
Elected to finish Dirksen's term. Nov 17, 1970 –
Jan 3, 1981		 Democratic
Adlai Stevenson III		 24
92nd
Re-elected in 1972. 27 93rd
94th 28 Re-elected in 1974.
Retired.
95th
Re-elected in 1978.
Lost re-election.		 28 96th
97th 29 Elected in 1980. Jan 3, 1981 –
Jan 3, 1993		 Democratic
Alan J. Dixon		 25
98th
22
Paul Simon		 Democratic Jan 3, 1985 –
Jan 3, 1997		 Elected in 1984. 29 99th
100th 30 Re-elected in 1986.
Lost renomination.
101st
Re-elected in 1990.
Retired.		 30 102nd
103rd 31 Elected in 1992.
Lost re-election.		 Jan 3, 1993 –
Jan 3, 1999		 Democratic
Carol Moseley Braun		 26
104th
23
Dick Durbin		 Democratic Jan 3, 1997 –
present		 Elected in 1996. 31 105th
106th 32 Elected in 1998.
Retired.		 Jan 3, 1999 –
Jan 3, 2005		 Republican
Peter Fitzgerald		 27
107th
Re-elected in 2002. 32 108th
109th 33 Elected in 2004.
Resigned to become U.S. President.		 Jan 3, 2005 –
Nov 16, 2008		 Democratic
Barack Obama		 28
110th
  Nov 16, 2008 –
Jan 12, 2009		 Vacant
Re-elected in 2008. 33 111th
Appointed to continue Obama's term, certified late.
Retired when successor qualified.		 Jan 12, 2009–
Nov 29, 2010		 Democratic
Roland Burris		 29
Elected to finish Obama's term.[lower-alpha 3] Nov 29, 2010 –
Jan 3, 2017		 Republican
Mark Kirk		 30
112th 34 Elected to full term in 2010.[lower-alpha 3]
Lost re-election.
113th
Re-elected in 2014. 34 114th
115th 35 Elected in 2016. Jan 3, 2017 –
present		 Democratic
Tammy Duckworth		 31
116th
Re-elected in 2020. 35 117th
118th 36 Re-elected in 2022.
119th
To be determined in the 2026 election. 36 120th
121st 37 To be determined in the 2028 election.
# Senator Party Years in office Electoral history T C T Electoral history Years in office Party Senator #
Class 2 Class 3

See also

Notes

  1. ↑ Shields was not seated because he had not been a citizen for the required nine years. He reached that mark on October 21, 1849, so his subsequent election was accepted by the Senate.
  2. ↑ When Smith presented his credentials to serve the remainder of McKinley's term, the Senate refused to seat him based on what it saw as an election rife with fraud and corruption. When Smith returned with his credentials for the term he was elected to, the Senate again refused to seat him for the same reasons. Smith and the Governor considered him to be the rightful senator, but he resigned in February 1928. The Senate does not consider him to have been a senator.
  3. 1 2 Kirk was elected to fill the remainder of Barack Obama's term in a special election held the same day as the general election for the next term, which he also won.

References

  1. ↑ Byrd & Wolff, p. 101.
  2. ↑ Polk, James (1853). The Statesman's Manual: The Addresses and Messages of the Presidents of the United States, Inaugural, Annual, and Special, from 1789 to 1851. E. Walker. p. 1890. Retrieved May 16, 2018.
  3. ↑ "Mason in Illinois". The New York Times. January 21, 1897. p. 2.
  4. ↑ "NO CHOICE IN RHODE ISLAND". The New York Times. January 23, 1907. p. 1.
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