United States congressional delegations from Iowa

Since Iowa became a U.S. state in 1846, it has sent congressional delegations to the United States Senate and United States House of Representatives. Each state elects two senators to serve for six years, and members of the House to two-year terms. Before becoming a state, the Iowa Territory elected a non-voting delegate at-large to Congress from 1838 to 1846.

These are tables of congressional delegations from Iowa to the United States Senate and the United States House of Representatives.[1]

Current delegation

Current U.S. senators from Iowa
Iowa

CPVI (2022):[2]
R+6
Class II senator Class III senator

Joni Ernst
(Junior senator)

Chuck Grassley
(Senior senator)
Party Republican Republican
Incumbent since January 3, 2015 January 3, 1981

Iowa's current congressional delegation in the 118th Congress consists of its two senators and four representatives, all Republicans.

The current dean of the Iowa delegation is Senator and President pro tempore emeritus of the United States Senate Chuck Grassley, having served in the Senate since 1981 and in Congress since 1975.

Current U.S. representatives from Iowa
District Member
(Residence)[3]
Party Incumbent since CPVI
(2022)[4]
District map
1st
Mariannette Miller-Meeks
(LeClaire)
Republican January 3, 2021 R+3
2nd
Ashley Hinson
(Marion)
Republican January 3, 2021 R+4
3rd
Zach Nunn
(Bondurant)
Republican January 3, 2023 R+3
4th
Randy Feenstra
(Hull)
Republican January 3, 2021 R+16

United States Senate

Class II senator Congress Class III senator
George Wallace
Jones
(D)
30th (1847–1849) Augustus C. Dodge (D)
31st (1849–1851)
32nd (1851–1853)
33rd (1853–1855)
34th (1855–1857) James Harlan (R)
35th (1857–1859)
James W. Grimes (R) 36th (1859–1861)
37th (1861–1863)
38th (1863–1865)
39th (1865–1867)
Samuel J. Kirkwood (R)
40th (1867–1869) James Harlan (R)
41st (1869–1871)
James B. Howell (R)
George G. Wright (R) 42nd (1871–1873)
43rd (1873–1875) William B. Allison (R)
44th (1875–1877)
Samuel J. Kirkwood (R) 45th (1877–1879)
46th (1879–1881)
47th (1881–1883)
James W. McDill (R)
James F. Wilson (R) 48th (1883–1885)
49th (1885–1887)
50th (1887–1889)
51st (1889–1891)
52nd (1891–1893)
53rd (1893–1895)
John H. Gear (R) 54th (1895–1897)
55th (1897–1899)
56th (1899–1901)
Jonathan P. Dolliver (R)
57th (1901–1903)
58th (1903–1905)
59th (1905–1907)
60th (1907–1909)
Albert B. Cummins (R)
61st (1909–1911)
Lafayette Young (R)
62nd (1911–1913)
William S. Kenyon (R)
63rd (1913–1915)
64th (1915–1917)
65th (1917–1919)
66th (1919–1921)
67th (1921–1923)
Charles A. Rawson (R)
Smith W. Brookhart (R)
68th (1923–1925)
69th (1925–1927)
Daniel F. Steck (D) David W. Stewart (R)
70th (1927–1929) Smith W. Brookhart (R)
71st (1929–1931)
L. J. Dickinson (R) 72nd (1931–1933)
73rd (1933–1935) Louis Murphy (D)
74th (1935–1937)
Guy Gillette (D)
Clyde L. Herring (D) 75th (1937–1939)
76th (1939–1941)
77th (1941–1943)
George A. Wilson (R) 78th (1943–1945)
79th (1945–1947) Bourke B.
Hickenlooper
(R)
80th (1947–1949)
Guy Gillette (D) 81st (1949–1951)
82nd (1951–1953)
83rd (1953–1955)
Thomas E. Martin (R) 84th (1955–1957)
85th (1957–1959)
86th (1959–1961)
Jack Miller (R) 87th (1961–1963)
88th (1963–1965)
89th (1965–1967)
90th (1967–1969)
91st (1969–1971) Harold Hughes (D)
92nd (1971–1973)
Dick Clark (D) 93rd (1973–1975)
94th (1975–1977) John Culver (D)
95th (1977–1979)
Roger Jepsen (R) 96th (1979–1981)
97th (1981–1983) Chuck Grassley (R)
98th (1983–1985)
Tom Harkin (D) 99th (1985–1987)
100th (1987–1989)
101st (1989–1991)
102nd (1991–1993)
103rd (1993–1995)
104th (1995–1997)
105th (1997–1999)
106th (1999–2001)
107th (2001–2003)
108th (2003–2005)
109th (2005–2007)
110th (2007–2009)
111th (2009–2011)
112th (2011–2013)
113th (2013–2015)
Joni Ernst (R) 114th (2015–2017)
115th (2017–2019)
116th (2019–2021)
117th (2021–2023)
118th (2023–2025)

United States House of Representatives

1838–1846: 1 non-voting delegate

On July 4, 1838, the Iowa Territory was organized. Most of the area comprising the territory was originally part of the Louisiana Purchase and was a part of the Missouri Territory. When Missouri became a state in 1821, this area (along with the Dakotas) effectively became unorganized territory. The area was closed to white settlers until the 1830s, after the Black Hawk War ended. It was attached to the Michigan Territory on June 28, 1834, and was split off with the Wisconsin Territory in 1836 when Michigan became a state. The Iowa Territory was the "Iowa District" of western Wisconsin Territory – the region west of the Mississippi River. The original boundaries of the territory, as established in 1838, included part of Minnesota and parts of the Dakotas, covering about 194,000 square miles (500,000 km2) of land.

Starting on September 10, 1838, Iowa Territory sent a non-voting delegate to the House.

Years Delegate from
Territory's at-large district
September 10, 1838 – October 27, 1840 William W. Chapman (D)
October 28, 1840 – December 28, 1846 Augustus C. Dodge (D)

1846–1863: 2 seats

Following statehood on December 28, 1846, Iowa had two seats in the House. It elected both seats statewide at-large on a general ticket, until 1847, when it redistricted into two districts.

Congress Elected on a general ticket
from Iowa's at-large district
1st seat 2nd seat
29th (1845–1847) Serranus C. Hastings (D) Shepherd Leffler (D)
Congress District
1st2nd
30th (1847–1849) William Thompson (D) Shepherd Leffler (D)
31st (1849–1851)
Daniel F. Miller (W)
32nd (1851–1853) Bernhart Henn (D) Lincoln Clark (D)
33rd (1853–1855) John Parsons Cook (W)
34th (1855–1857) Augustus Hall (D) James Thorington (W)
35th (1857–1859) Samuel Ryan Curtis (R) Timothy Davis (R)
36th (1859–1861) William Vandever (R)
37th (1861–1863)
James F. Wilson (R)

1863–1873: 6 seats

Following the 1860 census, Iowa was apportioned 6 seats.

Congress District
1st2nd3rd4th5th6th
38th (1863–1865) James F.
Wilson
(R)
Hiram Price (R) William B. Allison (R) Josiah Bushnell
Grinnell
(R)
John A. Kasson (R) Asahel W.
Hubbard
(R)
39th (1865–1867)
40th (1867–1869) William
Loughridge
(R)
Grenville M. Dodge (R)
41st (1869–1871) George W.
McCrary
(R)
William Smyth (R) Francis W. Palmer (R) Charles Pomeroy (R)
William P. Wolf (R)
42nd (1871–1873) Aylett R. Cotton (R) William G. Donnan (R) Madison M. Walden (R) Jackson Orr (R)

1873–1883: 9 seats

Following the 1870 census, Iowa was apportioned 9 seats.

Congress District
1st2nd3rd4th5th6th7th8th9th
43rd (1873–1875) George W.
McCrary
(R)
Aylett R. Cotton (R) William G. Donnan (R) Henry Otis
Pratt
(R)
James Wilson (R) William Loughridge (R) John A. Kasson (R) James W.
McDill
(R)
Jackson Orr (R)
44th (1875–1877) John Q. Tufts (R) L. L. Ainsworth (D) Ezekiel S.
Sampson
(R)
S. Addison
Oliver
(R)
45th (1877–1879) Joseph Champlin
Stone
(R)
Hiram Price (R) Theodore Weld
Burdick
(R)
Nathaniel Cobb
Deering
(R)
Rush Clark (R) Henry J. B.
Cummings
(R)
William Fletcher
Sapp
(R)
46th (1879–1881) Moses A.
McCoid
(R)
Thomas
Updegraff
(R)
James B. Weaver (GB) Edward H. Gillette (GB) Cyrus C.
Carpenter
(R)
William George
Thompson
(R)
47th (1881–1883) Sewall S. Farwell (R) Marsena E. Cutts (R) John A. Kasson (R) William Peters
Hepburn
(R)
John C. Cook (D)

1883–1933: 11 seats

Following the 1880 census, Iowa was apportioned 11 seats.

Congress District
1st2nd3rd4th5th6th7th8th9th10th11th
48th (1883–1885) Moses A.
McCoid
(R)
Jeremiah
Henry
Murphy
(D)
David B.
Henderson

(R)
Luman Hamlin
Weller
(GB)
Jim Wilson (R) Marsena E.
Cutts
(R)
John A.
Kasson
(R)
William Peters
Hepburn
(R)
William Henry
Mills Pusey
(D)
Adoniram J.
Holmes
(R)
Isaac S.
Struble
(R)
Benjamin T.
Frederick
(D)
John Cook (D) Hiram Smith (R)
49th (1885–1887) Ben Hall (D) William E.
Fuller
(R)
James B.
Weaver
(GB)
Edwin H.
Conger
(R)
Joseph
Lyman
(R)
50th (1887–1889) John H.
Gear
(R)
Walter I.
Hayes
(D)
Daniel Kerr (R) Albert R.
Anderson
(IR)
51st (1889–1891) Joseph Henry
Sweney
(R)
John F.
Lacey
(R)
James Patton
Flick
(R)
Joseph Rea
Reed
(R)
Jonathan P.
Dolliver
(R)
Edward Hays (R)
52nd (1891–1893) John Joseph
Seerley
(D)
Walter Halben
Butler
(D)
John Taylor
Hamilton
(D)
Frederick E.
White
(D)
John A. T.
Hull
(R)
Thomas
Bowman
(D)
George D.
Perkins
(R)
53rd (1893–1895) John Gear (R) Thomas
Updegraff
(R)
Robert G.
Cousins
(R)
John F.
Lacey
(R)
William Peters
Hepburn
(R)
Alva L.
Hager
(R)
54th (1895–1897) Samuel M.
Clark
(R)
George M.
Curtis
(R)
55th (1897–1899)
56th (1899–1901) Thomas
Hedge
(R)
Joe Lane (R) Gilbert N.
Haugen
(R)
Smith
McPherson
(R)
Lot
Thomas
(R)
Walter I.
Smith
(R)
James Perry
Conner
(R)
57th (1901–1903) John Rumple (R)
58th (1903–1905) Martin Wade (D) Benjamin P.
Birdsall
(R)
59th (1905–1907) Albert F.
Dawson
(R)
Elbert H.
Hubbard
(R)
60th (1907–1909) Charles A.
Kennedy
(R)
Daniel W.
Hamilton
(D)
61st (1909–1911) Charles E.
Pickett
(R)
James
William
Good
(R)
Nathan E.
Kendall
(R)
William Darius
Jamieson
(D)
Frank P.
Woods
(R)
62nd (1911–1913) Irvin S.
Pepper
(D)
Solomon F.
Prouty
(R)
Horace Mann
Towner
(R)
William R.
Green
(R)
George C.
Scott
(R)
63rd (1913–1915) Maurice
Connolly
(D)
Sanford
Kirkpatrick
(D)
Henry Vollmer (D)
64th (1915–1917) Harry E.
Hull
(R)
Burton E.
Sweet
(R)
C. William
Ramseyer
(R)
Cassius C.
Dowell
(R)
Thomas J.
Steele
(D)
65th (1917–1919) George C.
Scott
(R)
66th (1919–1921) L. J.
Dickinson
(R)
William D.
Boies
(R)
67th (1921–1923) William F.
Kopp
(R)
Cyrenus
Cole
(R)
68th (1923–1925) Thomas J. B.
Robinson
(R)
Hiram Evans (R)
69th (1925–1927) F. Dickinson
Letts
(R)
Lloyd
Thurston
(R)
70th (1927–1929)
Earl Vincent (R)
71st (1929–1931) Charles
Edward
Swanson
(R)
Ed H.
Campbell
(R)
72nd (1931–1933) Bernhard M.
Jacobsen
(D)
Fred C.
Gilchrist
(R)
Congress 1st2nd3rd4th5th6th7th8th9th10th11th
District

1933–1943: 9 seats

Following the 1930 census, Iowa was apportioned 9 seats.

Congress District
1st2nd3rd4th5th6th7th8th9th
73rd (1933–1935) Edward C.
Eicher
(D)
Bernhard M.
Jacobsen
(D)
Albert Willford (D) Fred
Biermann
(D)
Lloyd
Thurston
(R)
Cassius C. Dowell (R) Otha
Wearin
(D)
Fred C.
Gilchrist
(R)
Guy Gillette (D)
74th (1935–1937) John W.
Gwynne
(R)
Hubert Utterback (D)
75th (1937–1939) William S.
Jacobsen
(D)
Cassius C. Dowell (R) Vincent F.
Harrington
(D)
76th (1939–1941) Thomas E.
Martin
(R)
Henry O.
Talle
(R)
Karl M.
LeCompte
(R)
Ben F.
Jensen
(R)
77th (1941–1943) Paul
Cunningham
(R)
Harry Narey (R)

1943–1963: 8 seats

Following the 1940 census, Iowa was apportioned 8 seats.

Congress District
1st2nd3rd4th5th6th7th8th
78th (1943–1945) Thomas E.
Martin
(R)
Henry O.
Talle
(R)
John W.
Gwynne
(R)
Karl M.
LeCompte
(R)
Paul
Cunningham

(R)
Fred C.
Gilchrist
(R)
Ben F.
Jensen
(R)
Charles B.
Hoeven
(R)
79th (1945–1947) James I.
Dolliver
(R)
80th (1947–1949)
81st (1949–1951) H. R.
Gross
(R)
82nd (1951–1953)
83rd (1953–1955)
84th (1955–1957) Fred
Schwengel
(R)
85th (1957–1959) Merwin
Coad
(D)
86th (1959–1961) Leonard G.
Wolf
(D)
Steven V.
Carter
(D)
Neal
Smith
(D)
87th (1961–1963) James E.
Bromwell
(R)
John Henry
Kyl
(R)

1963–1973: 7 seats

Following the 1960 census, Iowa was apportioned 7 seats.

Congress District
1st2nd3rd4th5th6th7th
88th (1963–1965) Fred
Schwengel
(R)
James E.
Bromwell
(R)
H. R.
Gross
(R)
John Henry
Kyl
(R)
Neal
Smith
(D)
Charles B.
Hoeven
(R)
Ben F.
Jensen
(R)
89th (1965–1967) John R.
Schmidhauser
(D)
John
Culver
(D)
Bert
Bandstra
(D)
Stanley L.
Greigg
(D)
John R.
Hansen
(D)
90th (1967–1969) Fred
Schwengel
(R)
John Henry
Kyl
(R)
Wiley
Mayne
(R)
William J.
Scherle
(R)
91st (1969–1971)
92nd (1971–1973)

1973–1993: 6 seats

Following the 1970 census, Iowa was apportioned 6 seats.

Congress District
1st2nd3rd4th5th6th
93rd (1973–1975) Edward
Mezvinsky
(D)
John Culver (D) H. R. Gross (R) Neal
Smith
(D)
William Scherle (R) Wiley Mayne (R)
94th (1975–1977) Mike Blouin (D) Chuck
Grassley
(R)
Tom Harkin (D) Berkley
Bedell
(D)
95th (1977–1979) Jim Leach (R)
96th (1979–1981) Tom Tauke (R)
97th (1981–1983) T. Cooper
Evans
(R)
98th (1983–1985)
99th (1985–1987) Jim Ross
Lightfoot
(R)
100th (1987–1989) Dave
Nagle
(D)
Fred Grandy (R)
101st (1989–1991)
102nd (1991–1993) Jim Nussle (R)

1993–2013: 5 seats

Following the 1990 census, Iowa was apportioned 5 seats.

Congress District
1st2nd3rd4th5th
103rd (1993–1995) Jim Leach (R) Jim Nussle (R) Jim Ross
Lightfoot
(R)
Neal Smith (D) Fred Grandy (R)
104th (1995–1997) Greg Ganske (R) Tom Latham (R)
105th (1997–1999) Leonard
Boswell
(D)
106th (1999–2001)
107th (2001–2003)
108th (2003–2005) Jim Nussle (R) Jim Leach (R) Tom Latham (R) Steve King (R)
109th (2005–2007)
110th (2007–2009) Bruce Braley (D) Dave
Loebsack
(D)
111th (2009–2011)
112th (2011–2013)

2013–present: 4 seats

Following the 2010 census, Iowa was apportioned 4 seats.

Congress District
1st2nd3rd4th
113th (2013–2015) Bruce Braley (D) Dave
Loebsack
(D)
Tom Latham (R) Steve King (R)
114th (2015–2017) Rod Blum (R) David Young (R)
115th (2017–2019)
116th (2019–2021) Abby Finkenauer (D) Cindy Axne (D)
117th (2021–2023) Ashley Hinson (R) Mariannette
Miller-Meeks
(R)
Randy Feenstra (R)
118th (2023–2025) Mariannette
Miller-Meeks
(R)
Ashley Hinson (R) Zach Nunn (R)

Key

Democratic (D)
Greenback (GB)
Republican (R)
Whig (W)

See also

References

  1. "The national atlas". nationalatlas.gov. Archived from the original on February 22, 2014. Retrieved February 2, 2014.
  2. "2022 Cook PVI: State Map and List". Cook Political Report. Retrieved 2023-01-08.
  3. "Office of the Clerk, U.S. House of Representatives". clerk.house.gov. Retrieved 2022-01-06.
  4. "2022 Cook PVI: District Map and List". Cook Political Report. Retrieved 2023-01-08.
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