List of United States Senators from Iowa

Iowa was admitted to the Union on December 28, 1846. Its current Senators are Republican Charles Grassley, who has served since 1981, and Democrat Tom Harkin, who has served since 1985. With a combined service time of sixty years as of the 113th Congress, Iowa's current delegation is the most senior in the Senate.

Class 2

#	Senator	Party	Years	Term	Electoral history
1	George W. Jones	Democratic	December 7, 1848 – March 4, 1859	1	Elected in 1848
1	George W. Jones	Democratic	December 7, 1848 – March 4, 1859	2	Re-elected in 1853 Lost renomination
2	James W. Grimes	Republican	March 4, 1859 – December 6, 1869	3	Elected in 1859
2	James W. Grimes	Republican	March 4, 1859 – December 6, 1869	4	Re-elected in 1865 Resigned due to ill health
Vacant			December 6, 1869 – January 18, 1870
3	James B. Howell	Republican	January 18, 1870 – March 4, 1871		Elected to finish Grimes's term Retired
4	George G. Wright	Republican	March 4, 1871 – March 4, 1877	5	Elected in 1870 Retired
5	Samuel J. Kirkwood	Republican	March 4, 1877 – March 7, 1881	6	Elected in 1876 Resigned to become U.S. Secretary of the Interior
6	James W. McDill	Republican	March 8, 1881 – March 4, 1883	6	Appointed to continue Kirkwood's term Elected to finish Kirkwood's term Retired
7	James F. Wilson	Republican	March 4, 1883 – March 4, 1895	7	Elected in 1882
7	James F. Wilson	Republican	March 4, 1883 – March 4, 1895	8	Re-elected in 1888 Retired
8	John H. Gear	Republican	March 4, 1895 – July 14, 1900	9	Elected in 1894 Died
Vacant			July 14, 1900 – August 22, 1900
9	Jonathan P. Dolliver	Republican	August 22, 1900 – October 15, 1910		Appointed to finish Gear's term
				10	Elected to full term in 1900
				11	Re-elected in 1906 Died
Vacant			October 15, 1910 – November 12, 1910
10	Lafayette Young	Republican	November 12, 1910 – April 11, 1911		Appointed to continue Dolliver's term Lost election to finish Dolliver's term
11	William S. Kenyon	Republican	April 12, 1911 – February 24, 1922		Elected to finish Dolliver's term
				12	Re-elected in 1912
				13	Re-elected in 1918 Resigned to become Judge of the U.S. Court of Appeals
12	Charles A. Rawson	Republican	February 24, 1922 – December 1, 1922		Appointed to continue Kenyon's term Retired when successor elected
13	Smith W. Brookhart	Republican	December 1, 1922 – April 12, 1926		Elected to finish Kenyon's term
13	Smith W. Brookhart	Republican	December 1, 1922 – April 12, 1926	14	Re-elected in 1924 Lost election challenge
14	Daniel F. Steck	Democratic	April 12, 1926 – March 4, 1931	14	Successfully challenged predecessor's election Lost re-election
15	Lester J. Dickinson	Republican	March 4, 1931 – January 3, 1937	15	Elected in 1930 Lost re-election
Vacant			January 3, 1937 – January 15, 1937	16	Successor failed to qualify until term as Governor ended
16	Clyde L. Herring	Democratic	January 15, 1937 – January 3, 1943	16	Elected in 1936 Lost re-election
Vacant			January 3, 1943 – January 14, 1943	17
17	George A. Wilson	Republican	January 14, 1943 – January 3, 1949	17	Elected in 1942 but waited to finish gubernatorial term Lost re-election
18	Guy Gillette	Democratic	January 3, 1949 – January 3, 1955	18	Elected in 1948 Lost re-election
19	Thomas E. Martin	Republican	January 3, 1955 – January 3, 1961	19	Elected in 1954 Retired
20	Jack Miller	Republican	January 3, 1961 – January 3, 1973	20	Elected in 1960
20	Jack Miller	Republican	January 3, 1961 – January 3, 1973	21	Re-elected in 1966 Lost re-election
21	Dick Clark	Democratic	January 3, 1973 – January 3, 1979	22	Elected in 1972 Lost re-election
22	Roger Jepsen	Republican	January 3, 1979 – January 3, 1985	23	Elected in 1978 Lost re-election
23	Tom Harkin	Democratic	January 3, 1985 – Present	24	Elected in 1984
				25	Re-elected in 1990
				26	Re-elected in 1996
				27	Re-elected in 2002
				28	Re-elected in 2008 Retired
#	Senator	Party	Years	Term	Electoral history

Class 3

#	Senator	Party	Years	Term	Electoral history
1	Augustus C. Dodge	Democratic	December 7, 1848 – February 22, 1855	1	Elected in 1848
1	Augustus C. Dodge	Democratic	December 7, 1848 – February 22, 1855	2	Re-elected in 1849 Resigned to become U.S. Minister to Spain, having lost re-election
Vacant			February 22, 1855 – March 4, 1855	2
2	James Harlan	Free Soil	March 4, 1855 – January 5, 1857	3	Elected in 1855 Elected invalidated, as the Iowa Senate had not participated in it
	Vacant		January 5, 1857 – January 29, 1857
	James Harlan	Republican	January 29, 1857 – May 15, 1865		Re-elected after vacancy declared by Senate due to irregularities in the legislative proceedings that first elected Harlan to the Senate
	James Harlan	Republican	January 29, 1857 – May 15, 1865	4	Re-elected in 1861 Resigned to become U.S. Secretary of the Interior
Vacant			May 15, 1865 – January 13, 1866
3	Samuel J. Kirkwood	Republican	January 13, 1866 – March 4, 1867		Elected to finish Harlan's term Retired
4	James Harlan	Republican	March 4, 1867 – March 4, 1873	5	Elected in 1867 Lost re-election
5	William B. Allison	Republican	March 4, 1873 – August 4, 1908	6	Elected in 1872
				7	Re-elected in 1878
				8	Re-elected in 1884
				9	Re-elected in 1890
				10	Re-elected in 1896
				11	Re-elected in 1902 Died
Vacant			August 4, 1908 – November 24, 1908
6	Albert B. Cummins	Republican	November 24, 1908 – July 30, 1926		Appointed to finish Allison's term
				12	Elected to full term in 1908
				13	Re-elected in 1914
				14	Re-elected in 1920 Died, having lost renomination
Vacant			July 30, 1926 – August 7, 1926
7	David W. Stewart	Republican	August 7, 1926 – March 4, 1927		Appointed to continue Cummins's term Elected to finish Cummins's term Retired
8	Smith W. Brookhart	Republican	March 4, 1927 – March 4, 1933	15	Elected in 1926 Lost renomination and re-election as an Independent
9	Richard L. Murphy	Democratic	March 4, 1933 – July 16, 1936	16	Elected in 1932 Died
Vacant			July 16, 1936 – November 3, 1936
10	Guy Gillette	Democratic	November 3, 1936 – January 3, 1945		Elected to finish Murphy's term
10	Guy Gillette	Democratic	November 3, 1936 – January 3, 1945	17	Re-elected in 1938 Lost re-election
11	Bourke B. Hickenlooper	Republican	January 3, 1945 – January 3, 1969	18	Elected in 1944
				19	Re-elected in 1950
				20	Re-elected in 1956
				21	Re-elected in 1962 Retired
12	Harold Hughes	Democratic	January 3, 1969 – January 3, 1975	22	Elected in 1968 Retired
13	John Culver	Democratic	January 3, 1975 – January 3, 1981	23	Elected in 1974 Lost re-election
14	Chuck Grassley	Republican	January 3, 1981 – Present	24	Elected in 1980
				25	Re-elected in 1986
				26	Re-elected in 1992
				27	Re-elected in 1998
				28	Re-elected in 2004
				29	Re-elected in 2010
#	Senator	Party	Years	Term	Electoral history

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Obsolete	Dakota Territory Northwest Territory Orleans Territory Philippines Southwest Territory

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State of Iowa

Des Moines (capital)

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List of United States Senators from Iowa

List of United States Senators from Iowa

Class 2

Class 3

See also

Categories

Democratic Party (United States)

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United States Senate elections, 1848

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Suggestions

List of United States Senators who were born or died in the 1970s

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29th United States Congress

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30th United States Congress

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List of living former United States Senators

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Classes of United States Senators

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