The20th congressional district of Illinois was acongressional district for theUnited States House of Representatives inIllinois. It was eliminated as a result of the2000 census. It was last represented byJohn Shimkus who was redistricted into the19th district.

Member	Party	Years	Cong ress	Electoral history
District created March 4, 1883
John R. Thomas (Metropolis)	Republican	March 4, 1883 – March 3, 1889	48th 49th 50th	Redistricted from the18th district andre-elected in 1882. Re-elected in 1884. Re-elected in 1886. Retired.
George W. Smith (Murphysboro)	Republican	March 4, 1889 – March 3, 1895	51st 52nd 53rd	Elected in 1888. Re-elected in 1890. Re-elected in 1892. Redistricted to the22nd district.
Orlando Burrell (Carmi)	Republican	March 4, 1895 – March 3, 1897	54th	Elected in 1894. Lost re-election.
James R. Campbell (McLeansboro)	Democratic	March 4, 1897 – March 3, 1899	55th	Elected in 1896. Retired.
James R. Williams (Carmi)	Democratic	March 4, 1899 – March 3, 1903	56th 57th	Elected in 1898. Re-elected in 1900. Redistricted to the24th district.
Henry T. Rainey (Carrollton)	Democratic	March 4, 1903 – March 3, 1921	58th 59th 60th 61st 62nd 63rd 64th 65th 66th	Elected in 1902. Re-elected in 1904. Re-elected in 1906. Re-elected in 1908. Re-elected in 1910. Re-elected in 1912. Re-elected in 1914. Re-elected in 1916. Re-elected in 1918. Lost re-election.
Guy L. Shaw (Beardstown)	Republican	March 4, 1921 – March 3, 1923	67th	Elected in 1920. Lost re-election.
Henry T. Rainey (Carrollton)	Democratic	March 4, 1923 – August 19, 1934	68th 69th 70th 71st 72nd 73rd	Elected in 1922. Re-elected in 1924. Re-elected in 1926. Re-elected in 1928. Re-elected in 1930. Re-elected in 1932. Died.
Vacant		August 19, 1934 – January 3, 1935	73rd
Scott W. Lucas (Havana)	Democratic	January 3, 1935 – January 3, 1939	74th 75th	Elected in 1934. Re-elected in 1936. Retired torun for U.S. Senator.
James M. Barnes (Jacksonville)	Democratic	January 3, 1939 – January 3, 1943	76th 77th	Elected in 1938. Re-elected in 1940. Lost re-election.
Sid Simpson (Carrollton)	Republican	January 3, 1943 – October 26, 1958	78th 79th 80th 81st 82nd 83rd 84th 85th	Elected in 1942. Re-elected in 1944. Re-elected in 1946. Re-elected in 1948. Re-elected in 1950. Re-elected in 1952. Re-elected in 1954. Re-elected in 1956. Died.
Vacant		October 26, 1958 – January 3, 1959	85th
Edna O. Simpson (Carrollton)	Republican	January 3, 1959 – January 3, 1961	86th	Elected in 1958. Retired.
Paul Findley (Pittsfield)	Republican	January 3, 1961 – January 3, 1983	87th 88th 89th 90th 91st 92nd 93rd 94th 95th 96th 97th	Elected in 1960. Re-elected in 1962. Re-elected in 1964. Re-elected in 1966. Re-elected in 1968. Re-elected in 1970. Re-elected in 1972. Re-elected in 1974 Re-elected in 1976. Re-elected in 1978. Re-elected in 1980. Lost re-election.
Dick Durbin (Springfield)	Democratic	January 3, 1983 – January 3, 1997	98th 99th 100th 101st 102nd 103rd 104th	Elected in 1982. Re-elected in 1984. Re-elected in 1986. Re-elected in 1988. Re-elected in 1990. Re-elected in 1992. Re-elected in 1994. Retired torun for U.S. Senator.
John Shimkus (Collinsville)	Republican	January 3, 1997 – January 3, 2003	105th 106th 107th	Elected in 1996. Re-elected in 1998. Re-elected in 2000 Redistricted to the19th district.
District eliminated January 3, 2003

• Martis, Kenneth C. (1989).The Historical Atlas of Political Parties in the United States Congress. New York: Macmillan Publishing Company.
• Martis, Kenneth C. (1982).The Historical Atlas of United States Congressional Districts. New York: Macmillan Publishing Company.
• Congressional Biographical Directory of the United States 1774–present

ThisUnited States Congress–related article is astub. You can help Wikipedia byexpanding it.

• v
• t
• e

• Congressional districts of Illinois
• Former congressional districts of the United States
• 1883 establishments in Illinois
• Constituencies established in 1883
• 2003 disestablishments in Illinois
• Constituencies disestablished in 2003
• Dick Durbin
• United States Congress stubs

• Articles with short description
• Short description matches Wikidata
• Use mdy dates from May 2023
• Long stubs with short prose
• All stub articles