History / Congress

U.S. Senate seat, Iowa (class 3)

25 members have held this seat since Dec 7, 1848. Now: Chuck Grassley R.

Holders

20 R · 5 D

Longest tenure

28 years

Chuck Grassley

Current

28 years

Chuck Grassley, since Jan 6, 1999

history/seat/ia-sen-3Every holder, newest first

+25

Chuck Grassley R

Jan 6, 1999 – present · 28 years

Chuck Grassley R

Jan 6, 1987 – Jan 4, 1999 · 12 years

Chuck Grassley R

Jan 5, 1981 – Jan 4, 1987 · 6 years

John Chester Culver D

Jan 14, 1975 – Jan 4, 1981 · 6 years

Harold Everett Hughes D

Jan 3, 1969 – Jan 4, 1975 · 6 years

Bourke Blakemore Hickenlooper R

Jan 9, 1963 – Jan 4, 1969 · 6 years

Bourke Blakemore Hickenlooper R

Jan 3, 1945 – Jan 4, 1963 · 18 years

Guy Mark Gillette D

Nov 4, 1936 – Jan 4, 1945 · 8.2 years

Richard Louis Murphy D

Mar 9, 1933 – Jul 17, 1936 · 3.4 years

Smith Wildman Brookhart R

Dec 5, 1927 – Mar 4, 1933 · 5.2 years

David Wallace Stewart R

Aug 7, 1926 – Mar 5, 1927 · 7 months

Albert Baird Cummins R

Apr 11, 1921 – Jul 31, 1926 · 5.3 years

Albert Baird Cummins R

Dec 6, 1915 – Mar 4, 1921 · 5.2 years

Albert Baird Cummins R

Nov 24, 1908 – Mar 4, 1915 · 6.3 years

William Boyd Allison R

Nov 9, 1903 – Aug 5, 1908 · 4.7 years

William Boyd Allison R

Mar 15, 1897 – Mar 4, 1903 · 6 years

William Boyd Allison R

Dec 7, 1891 – Mar 4, 1897 · 5.2 years

William Boyd Allison R

Dec 7, 1885 – Mar 4, 1891 · 5.2 years

William Boyd Allison R

Mar 18, 1879 – Mar 4, 1885 · 6 years

William Boyd Allison R

Dec 1, 1873 – Mar 4, 1879 · 5.3 years

James Harlan R

Mar 4, 1867 – Mar 4, 1873 · 6 years

Samuel Jordan Kirkwood R

Jan 1, 1866 – Mar 4, 1867 · 14 months

James Harlan R

Jul 4, 1861 – Jan 1, 1866 · 4.5 years

James Harlan R

Dec 3, 1855 – Mar 4, 1861 · 5.3 years

Augustus Caesar Dodge D

Dec 7, 1848 – Feb 23, 1855 · 6.2 years

Dates are from the @unitedstates congress-legislators project. Consecutive terms of one person are merged.