History / Congress

U.S. Senate seat, Iowa (class 2)

35 members have held this seat since Jan 1, 1848. Now: Joni Ernst R.

Holders
35
25 R · 10 D
Longest tenure
12 years
Tom Harkin
Current
12 years
Joni Ernst, since Jan 6, 2015
history/seat/ia-sen-2Every holder, newest first
+35
186018801900192019401960198020002020George Wallace Jones · 1848-01-01 – 1853-03-04 · DemocratGeorge Wallace Jones · 1853-12-05 – 1859-03-04 · DemocratJames Wilson Grimes · 1859-12-05 – 1865-03-04 · RepublicanJames Wilson Grimes · 1865-12-04 – 1870-01-01 · RepublicanJames Bruen Howell · 1870-01-01 – 1871-03-04 · RepublicanGeorge Grover Wright · 1871-03-04 – 1877-03-04 · RepublicanSamuel Jordan Kirkwood · 1877-10-15 – 1882-01-01 · RepublicanJames Falconer Wilson · 1883-12-03 – 1889-03-04 · RepublicanJames Falconer Wilson · 1889-12-02 – 1895-03-04 · RepublicanJohn Henry Gear · 1895-12-02 – 1900-07-15 · RepublicanJonathan Prentiss Dolliver · 1900-08-22 – 1907-03-04 · RepublicanJonathan Prentiss Dolliver · 1907-12-02 – 1910-10-16 · RepublicanLafayette Young · 1910-11-12 – 1911-04-12 · RepublicanWilliam Squire Kenyon · 1911-04-12 – 1913-03-04 · RepublicanWilliam Squire Kenyon · 1913-04-07 – 1919-03-04 · RepublicanWilliam Squire Kenyon · 1919-05-19 – 1922-02-25 · RepublicanSmith Wildman Brookhart · 1922-12-02 – 1925-03-04 · RepublicanSmith Wildman Brookhart · 1925-12-07 – 1926-04-13 · RepublicanLester Jesse Dickinson · 1931-12-07 – 1937-01-04 · RepublicanClyde LaVerne Herring · 1937-01-05 – 1943-01-04 · DemocratGeorge Allison Wilson · 1943-01-06 – 1949-01-04 · RepublicanThomas Ellsworth Martin · 1955-01-05 – 1961-01-04 · RepublicanJack Richard Miller · 1967-01-10 – 1973-01-04 · RepublicanRoger William Jepsen · 1979-01-15 – 1985-01-04 · RepublicanTom Harkin · 1997-01-07 – 2003-01-04 · DemocratTom Harkin · 2003-01-07 – 2009-01-04 · DemocratTom Harkin · 2009-01-06 – 2015-01-04 · DemocratJoni Ernst · 2015-01-06 – present · RepublicanJames Wilson McDill · 1881-12-05 – 1883-03-04 · RepublicanCharles Augustus Rawson · 1922-02-24 – 1922-11-08 · RepublicanDaniel Frederic Steck · 1926-04-12 – 1931-03-04 · DemocratGuy Mark Gillette · 1949-01-03 – 1955-01-04 · DemocratJack Richard Miller · 1961-01-03 – 1967-01-04 · RepublicanRichard Clarence Clark · 1973-01-03 – 1979-01-04 · DemocratTom Harkin · 1985-01-03 – 1997-01-04 · Democrat
Joni Ernst R
Jan 6, 2015 – present · 12 years
Tom Harkin D
Jan 6, 2009 – Jan 4, 2015 · 6 years
Tom Harkin D
Jan 7, 2003 – Jan 4, 2009 · 6 years
Tom Harkin D
Jan 7, 1997 – Jan 4, 2003 · 6 years
Tom Harkin D
Jan 3, 1985 – Jan 4, 1997 · 12 years
Roger William Jepsen R
Jan 15, 1979 – Jan 4, 1985 · 6 years
Richard Clarence Clark D
Jan 3, 1973 – Jan 4, 1979 · 6 years
Jack Richard Miller R
Jan 10, 1967 – Jan 4, 1973 · 6 years
Jack Richard Miller R
Jan 3, 1961 – Jan 4, 1967 · 6 years
Thomas Ellsworth Martin R
Jan 5, 1955 – Jan 4, 1961 · 6 years
Guy Mark Gillette D
Jan 3, 1949 – Jan 4, 1955 · 6 years
George Allison Wilson R
Jan 6, 1943 – Jan 4, 1949 · 6 years
Clyde LaVerne Herring D
Jan 5, 1937 – Jan 4, 1943 · 6 years
Lester Jesse Dickinson R
Dec 7, 1931 – Jan 4, 1937 · 5.1 years
Daniel Frederic Steck D
Apr 12, 1926 – Mar 4, 1931 · 4.9 years
Smith Wildman Brookhart R
Dec 7, 1925 – Apr 13, 1926 · 4 months
Smith Wildman Brookhart R
Dec 2, 1922 – Mar 4, 1925 · 2.3 years
Charles Augustus Rawson R
Feb 24, 1922 – Nov 8, 1922 · 8 months
William Squire Kenyon R
May 19, 1919 – Feb 25, 1922 · 2.8 years
William Squire Kenyon R
Apr 7, 1913 – Mar 4, 1919 · 5.9 years
William Squire Kenyon R
Apr 12, 1911 – Mar 4, 1913 · 23 months
Lafayette Young R
Nov 12, 1910 – Apr 12, 1911 · 5 months
Jonathan Prentiss Dolliver R
Dec 2, 1907 – Oct 16, 1910 · 2.9 years
Jonathan Prentiss Dolliver R
Aug 22, 1900 – Mar 4, 1907 · 6.5 years
John Henry Gear R
Dec 2, 1895 – Jul 15, 1900 · 4.6 years
James Falconer Wilson R
Dec 2, 1889 – Mar 4, 1895 · 5.3 years
James Falconer Wilson R
Dec 3, 1883 – Mar 4, 1889 · 5.3 years
James Wilson McDill R
Dec 5, 1881 – Mar 4, 1883 · 15 months
Samuel Jordan Kirkwood R
Oct 15, 1877 – Jan 1, 1882 · 4.2 years
George Grover Wright R
Mar 4, 1871 – Mar 4, 1877 · 6 years
James Bruen Howell R
Jan 1, 1870 – Mar 4, 1871 · 14 months
James Wilson Grimes R
Dec 4, 1865 – Jan 1, 1870 · 4.1 years
James Wilson Grimes R
Dec 5, 1859 – Mar 4, 1865 · 5.2 years
George Wallace Jones D
Dec 5, 1853 – Mar 4, 1859 · 5.2 years
George Wallace Jones D
Jan 1, 1848 – Mar 4, 1853 · 5.2 years

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