History / Congress
Illinois's 12th congressional district
54 members have held this seat since Dec 7, 1863. Now: Mike Bost R.
Holders
5432 R · 21 D · 1 P
Longest tenure
12 yearsMike Bost
Current
12 yearsMike Bost, since Jan 6, 2015
history/seat/il-12Every holder, newest first+54
Mike Bost R
Jan 6, 2015 – present · 12 years
William L. Enyart D
Jan 3, 2013 – Jan 4, 2015 · 2 years
Jerry F. Costello D
Jan 6, 2009 – Jan 4, 2013 · 4 years
Jerry F. Costello D
Jan 7, 2003 – Jan 4, 2009 · 6 years
Jerry F. Costello D
Jan 6, 1999 – Jan 4, 2003 · 4 years
Jerry F. Costello D
Jan 7, 1997 – Jan 4, 1999 · 2 years
Jerry F. Costello D
Jan 5, 1993 – Jan 4, 1997 · 4 years
Philip M. Crane R
Jan 6, 1987 – Jan 4, 1993 · 6 years
Philip M. Crane R
Jan 15, 1979 – Jan 4, 1987 · 8 years
Philip M. Crane R
Jan 14, 1975 – Jan 4, 1979 · 4 years
Philip M. Crane R
Jan 3, 1973 – Jan 4, 1975 · 2 years
Robert McClory R
Jan 21, 1971 – Jan 4, 1973 · 23 months
Robert McClory R
Jan 10, 1967 – Jan 4, 1971 · 4 years
Robert McClory R
Jan 9, 1963 – Jan 4, 1967 · 4 years
Edward Rowan Finnegan D
Jan 3, 1961 – Jan 4, 1963 · 2 years
Charles Augustus Boyle D
Jan 7, 1959 – Jan 4, 1961 · 2 years
Charles Augustus Boyle D
Jan 5, 1955 – Jan 4, 1959 · 4 years
Edgar Allan Jonas R
Jan 3, 1949 – Jan 4, 1955 · 6 years
Noah Morgan Mason R
Jan 6, 1943 – Jan 4, 1949 · 6 years
Noah Morgan Mason R
Jan 5, 1937 – Jan 4, 1943 · 6 years
John Theodore Buckbee R
Mar 9, 1933 – Jan 4, 1937 · 3.8 years
John Theodore Buckbee R
Dec 7, 1931 – Mar 4, 1933 · 15 months
John Theodore Buckbee R
Apr 15, 1929 – Mar 4, 1931 · 23 months
John Theodore Buckbee R
Dec 5, 1927 – Mar 4, 1929 · 15 months
Charles Eugene Fuller R
Dec 7, 1925 – Mar 5, 1927 · 15 months
Charles Eugene Fuller R
Dec 3, 1923 – Mar 4, 1925 · 15 months
Charles Eugene Fuller R
Apr 11, 1921 – Mar 4, 1923 · 23 months
Charles Eugene Fuller R
May 19, 1919 – Mar 4, 1921 · 22 months
Charles Eugene Fuller R
Apr 2, 1917 – Mar 4, 1919 · 23 months
Charles Eugene Fuller R
Dec 6, 1915 – Mar 4, 1917 · 15 months
William Henry Hinebaugh P
Apr 7, 1913 – Mar 4, 1915 · 23 months
Charles Eugene Fuller R
Apr 4, 1911 – Mar 4, 1913 · 23 months
Charles Eugene Fuller R
Mar 15, 1909 – Mar 4, 1911 · 2 years
Charles Eugene Fuller R
Dec 2, 1907 – Mar 4, 1909 · 15 months
Charles Eugene Fuller R
Dec 4, 1905 – Mar 4, 1907 · 15 months
Charles Eugene Fuller R
Nov 9, 1903 – Mar 4, 1905 · 16 months
Joseph Gurney Cannon R
Dec 2, 1901 – Mar 4, 1903 · 15 months
Joseph Gurney Cannon R
Dec 4, 1899 – Mar 4, 1901 · 15 months
Joseph Gurney Cannon R
Mar 15, 1897 – Mar 4, 1899 · 2 years
Joseph Gurney Cannon R
Dec 2, 1895 – Mar 4, 1897 · 15 months
John James McDannold D
Aug 7, 1893 – Mar 4, 1895 · 19 months
Scott Wike D
Dec 7, 1891 – Mar 4, 1893 · 15 months
Scott Wike D
Dec 2, 1889 – Mar 4, 1891 · 15 months
George Alburtus Anderson D
Dec 5, 1887 – Mar 4, 1889 · 15 months
James Milton Riggs D
Dec 7, 1885 – Mar 4, 1887 · 15 months
James Milton Riggs D
Dec 3, 1883 – Mar 4, 1885 · 15 months
William McKendree Springer D
Dec 5, 1881 – Mar 4, 1883 · 15 months
William McKendree Springer D
Mar 18, 1879 – Mar 4, 1881 · 2 years
William McKendree Springer D
Oct 15, 1877 – Mar 4, 1879 · 17 months
William McKendree Springer D
Dec 6, 1875 – Mar 4, 1877 · 15 months
James Carroll Robinson D
Dec 1, 1873 – Mar 4, 1875 · 15 months
John Breese Hay R
Mar 4, 1869 – Mar 4, 1873 · 4 years
Jehu Baker R
Dec 4, 1865 – Mar 4, 1869 · 3.2 years
William Ralls Morrison D
Dec 7, 1863 – Mar 4, 1865 · 15 months
Dates are from the @unitedstates congress-legislators project. Consecutive terms of one person are merged.