Elections in Iowa |
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Special elections to the Iowa State Senate are called by the Governor of Iowa when a vacancy arises within the State Senate. If there is a vacancy in the Iowa General Assembly (i.e., the Iowa state legislature), the vacant seat must be filled by special election. If the vacancy occurs while the General Assembly is in session, the Governor must call within five days of the occurrence of the vacancy for an election as expeditiously as feasible, with a minimum 18-day notice. If the vacancy happens while the General Assembly is out of session, the special election must follow a 45-day notice, as long as the election does not coincide with a school election. All special elections must be held on a Tuesday. [1]
District | Election Date | Predecessor | Special Election Winner |
---|---|---|---|
39th | February 17, 1913 | Charles Gates (R) | F. P. Hagemann (D) |
37th | March 31, 1923 | Daniel Cady Chase (R) | William Schmedika (D) |
4th | February 1, 1933 | John Henry Judd (D) | Joseph E. Doze (D) |
29th | March 24, 1933 | Oliver Perry Myers (D) | D. Myron Tripp (D) |
35th | August 22, 1933 | Matt D. Cooney (D) | Howard C. Baldwin (D) |
45th | October 3, 1933 | Harry Cook White (D) | Richard V. Leo (R) |
2nd | January 17, 1944 | Sanford Zeigler (R) | Charles W. Wade (R) |
5th | January 17, 1944 | Stephen Ray Emerson (R) | T.M. Thompson (R) |
28th | January 26, 1945 | Benjamin Chase Whitehill (R) | Robert A. Rockhill (R) |
37th | January 6, 1947 | George Raymond Hill (R) | Rex R. Bateson (R) |
15th | January 10, 1963 | L. C. Shivvers (R) | Vera H. Shivvers (R) |
18th | June 20, 1969 | Kenneth Benda (R) | Joan Orr (D) |
1st | September 9, 1969 | Seeley G. Lodwick (R) | Wilson L. Davis (R) |
45th | October 28, 1969 | Walter B. Hammer (R) | S. J. Brownlee (R) |
14th | November 15, 1969 | David M. Stanley (R) | W. R. Rabedeaux (R) |
6th | November 18, 1969 | Charles Vernon Lisle (R) | Earl Bass (R) |
12th | December 16, 1969 | Joseph Flatt (R) | Glen E. Bortell (R) |
22nd | December 1970 | J. Donald Weimer (D) [lower-alpha 1] | Cloyd E. Robinson (D) |
47th | December 1972 | James B. Turner (R) [lower-alpha 2] | Richard R. Ramsey (R) |
10th | November 5, 1974 | Mike Blouin (D) | Robert M. "Bob" Carr (D) |
15th | November 2, 1976 | Steve Sovern (D) | Bob Rush (D) |
11th | December 28, 1976 | Richard John Norpel (D) | Steve Bisenius (R) |
41st | December 28, 1976 | Bill Gluba (D) | Forrest F. Ashcraft (R) |
36th | November 8, 1983 | Michael R. Lura (R) | John Soorholtz (R) |
45th | September 10, 1985 | Norman Rodgers (D) | Jim R. Riordan (D) |
34th | December 17, 1985 | John A. Neighbour (D) | John A. Peterson (D) |
31st | January 7, 1986 | Lowell Junkins (D) | Gene Fraise (D) |
13th | January 28, 1986 | Thomas A. Lind (R) | Jim Lind (R) |
18th | September 26, 1989 | Robert M. Carr (D) | Mike Connolly (D) |
12th | December 18, 1990 | Joy Corning (R) | Harry G. Slife (R) |
44th | December 17, 1991 | Jack Nystrom (R) | Albert Sorensen (D) |
12th | August 31, 1993 | Harry G. Slife (R) | Donald Redfern (R) |
5th | February 22, 1994 | Linn Fuhrman (R) | Mary Lou Freeman (R) |
25th | February 22, 1994 | Richard J. Varn (D) | Robert Dvorsky (D) |
26th | December 20, 1994 | Paul Pate (R) | Mary Lundby (R) |
13th | April 1997 [lower-alpha 3] | Jim Lind (R) | Patricia M. "Pat" Harper (D) |
8th | February 3, 1998 | James E. Black (R) | E. Thurman Gaskill (R) |
46th | January 12, 1999 | Patty Judge (D) | John Judge (D) |
43rd | June 12, 2001 | Derryl McLaren (R) | Hubert Houser (R) |
39th | February 19, 2002 | Jo Ann M. Johnson (R) | David G. Lord (R) |
10th | March 12, 2002 | Merlin Bartz (R) | Amanda Ragan (D) |
26th | January 14, 2003 | Steve King (R) [lower-alpha 4] | Steve Kettering (R) |
30th | February 3, 2004 | Mary Kramer (R) | Pat Ward (R) |
48th | January 4, 2011 | Kim Reynolds (R) | Joni Ernst (R) |
35th | January 18, 2011 | Larry Noble (R) | Jack Whitver (R) |
18th | November 8, 2011 | Swati Dandekar (D) | Liz Mathis (D) |
22nd | December 11, 2012 | Pat Ward (R) [lower-alpha 5] | Charles Schneider (R) |
13th | November 19, 2013 | Kent Sorenson (R) | Julian Garrett (R) |
12th | December 30, 2014 | Joni Ernst (R) | Mark Costello (R) |
45th | December 27, 2016 | Joe Seng (D) | Jim Lykam (D) |
3rd | December 12, 2017 | Bill Anderson (R) | Jim Carlin (R) |
25th | April 10, 2018 | Bill Dix (R) | Annette Sweeney (R) |
30th | March 19, 2019 | Jeff Danielson (D) | Eric Giddens (D) |
41st | January 26, 2021 | Mariannette Miller-Meeks (R) | Adrian Dickey (R) |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Democratic | F. P. Hagemann | 2,670 | 53.50% | |
Republican | Benjamin Boardman | 1,490 | 29.85% | |
Progressive | Harry A. Morey | 831 | 16.65% | |
Total votes | 4,991 | 100.0 | ||
Democratic gain from Republican | ||||
Party | Candidate | Votes | % | |
---|---|---|---|---|
Democratic | William Schmedika | 2,006 | 54.88% | |
Republican | Rube McFeren | 1,649 | 45.12% | |
Total votes | 3,655 | 100.0 | ||
Democratic gain from Republican | ||||
Party | Candidate | Votes | % | |
---|---|---|---|---|
Democratic | Joseph E. Doze | 3,047 | 54.2 | |
Republican | H. C. Condra | 2,579 | 45.8 | |
Total votes | 5,626 | 100.0 | ||
Democratic hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Democratic | D. Myron Tripp | 3,756 | 55.6 | |
Republican | John E. Cross | 2,999 | 44.4 | |
Total votes | 6,755 | 100.0 | ||
Democratic hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Democratic | Howard Baldwin | 936 | 100.0 | |
Total votes | 936 | 100.0 | ||
Democratic hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Republican | Richard V. Leo | 6,718 | 52.1 | |
Democratic | M. W. Hyland | 6,181 | 47.9 | |
Total votes | 12,899 | 100.0 | ||
Republican gain from Democratic | ||||
Party | Candidate | Votes | % | |
---|---|---|---|---|
Republican | Charles W. Wade | 1,464 | 73.1 | |
Democratic | S.C. Simmons | 540 | 26.9 | |
Total votes | 2,004 | 100.0 | ||
Republican hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Republican | T.M. Thompson | 904 | 100.0 | |
Total votes | 904 | 100.0 | ||
Republican hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Republican | Robert A. Rockhill | 1,783 | 72.9 | |
Democratic | C. E. Wicklund | 663 | 27.1 | |
Total votes | 2,446 | 100.0 | ||
Republican hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Republican | R. R. Bateson | 2,440 | 47.8 | |
Democratic | Frank J. Lund | 2,258 | 44.2 | |
Independent | William Schmedika | 409 | 8.0 | |
Total votes | 5,107 | 100.0 | ||
Republican hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Republican | Vera H. Shivvers | 2,921 | 53.0 | |
Democratic | Howard H. Myers | 2,586 | 47.0 | |
Total votes | 5,507 | 100.0 | ||
Republican hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Democratic | Cloyd E. Robinson [lower-alpha 6] | 2,782 | 55.8 | |
Republican | Jesse G. Hunter | 2,201 | 44.2 | |
Total votes | 4,983 | 100.0 | ||
Democratic hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Republican | Richard Ramsey | 4,016 | 50.2 | |
Democratic | Arlo Hullinger | 3,989 | 49.8 | |
Total votes | 8,005 | 100.0 | ||
Republican hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Democratic | Robert M. "Bob" Carr | 6,273 | 59.5 | |
Republican | James L. Esmoil | 4,270 | 40.5 | |
Total votes | 10,543 | 100.0 | ||
Democratic hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Democratic | Bob Rush | 13,777 | 59.8 | |
Republican | Andrew Gordon Holmes | 9,254 | 40.2 | |
Total votes | 23,031 | 100.0 | ||
Democratic hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Republican | Steve Bisenius | 3,925 | 50.8 | |
Democratic | Maurice Hennessey | 3,800 | 49.2 | |
Total votes | 7,725 | 100.0 | ||
Republican gain from Democratic | ||||
Party | Candidate | Votes | % | |
---|---|---|---|---|
Republican | Forrest F. Ashcraft | 3,028 | 61.6 | |
Democratic | Michael McDonald | 1,886 | 38.4 | |
Total votes | 4,914 | 100.0 | ||
Republican gain from Democratic | ||||
Party | Candidate | Votes | % | |
---|---|---|---|---|
Republican | John Soorholtz | 6,525 | 50.1 | |
Democratic | Tom Swartz | 6,492 | 49.9 | |
Total votes | 13,017 | 100.0 | ||
Republican hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Democratic | Jim R. Riordan | 6,720 | 51.2 | |
Republican | Don Lienemann | 5,931 | 45.2 | |
Populist | Johnny E. Vogel | 472 | 3.6 | |
Total votes | 13,123 | 100.0 | ||
Democratic hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Democratic | John A. Peterson | 3,709 | 60.5 | |
Republican | Bill G. Anders | 2,423 | 39.5 | |
Total votes | 6,132 | 100.0 | ||
Democratic hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Democratic | Gene Fraise | 3,972 | 55.3 | |
Republican | Judson B. Seeley | 3,212 | 44.7 | |
Total votes | 7,184 | 100.0 | ||
Democratic hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Republican | Jim Lind | 5,947 | 53.5 | |
Democratic | Steve Rapp | 5,159 | 46.5 | |
Total votes | 11,106 | 100.0 | ||
Republican hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Democratic | Mike Connolly | 4,601 | 100.0 | |
Total votes | 4,601 | 100.0 | ||
Democratic hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Republican | Harry Slife | 4,734 | 58.8 | |
Democratic | Rose Angel | 3,313 | 41.2 | |
Total votes | 8,047 | 100.0 | ||
Republican hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Democratic | Albert Sorensen | 4,588 | 59.3 | |
Republican | George Maybee | 3,143 | 40.7 | |
Total votes | 7,731 | 100.0 | ||
Democratic gain from Republican | ||||
Party | Candidate | Votes | % | |
---|---|---|---|---|
Republican | Donald Redfern | 6,863 | 54.3 | |
Democratic | Sandra Glenn | 5,776 | 45.7 | |
Total votes | 12,639 | 100.0 | ||
Republican hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Republican | Mary Lou Freeman | 4,212 | 61.1 | |
Democratic | Donald Schossow | 2,680 | 38.9 | |
Total votes | 6,892 | 100.0 | ||
Republican hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Democratic | Robert Dvorsky | 2,073 | 54.0 | |
Republican | Rosie Dalton | 1,763 | 46.0 | |
Total votes | 3,836 | 100.0 | ||
Democratic hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Republican | Mary Lundby | 4,170 | 59.1 | |
Democratic | Charlie Brown | 2,890 | 40.9 | |
Total votes | 7,060 | 100.0 | ||
Republican hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Republican | E. Thurman Gaskill | 5,647 | 54.7 | |
Democratic | Christine G. Louscher | 3,907 | 37.8 | |
Independent | Paul Bernhard | 770 | 7.5 | |
Total votes | 10,324 | 100.0 | ||
Republican hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Democratic | John Judge | 4,494 | 47.9 | |
Republican | Claude Neill | 4,377 | 46.6 | |
Reform | Garry Lee Klicker | 514 | 5.5 | |
Total votes | 9,385 | 100.0 | ||
Democratic hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Republican | Hubert Houser | 4,144 | 71.8 | |
Democratic | John J. O'Brien | 1,630 | 28.2 | |
Total votes | 5,774 | 100.0 | ||
Republican hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Republican | David G. Lord | 3,475 | 70.8 | |
Democratic | Steve Shelley | 1,433 | 29.2 | |
Total votes | 4,908 | 100.0 | ||
Republican hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Democratic | Amanda Ragan | 6,453 | 62.8 | |
Republican | Mary Ellen Miller | 3,554 | 34.6 | |
Independent | Kevin Smith | 262 | 2.6 | |
Total votes | 10,269 | 100.0 | ||
Democratic gain from Republican | ||||
Party | Candidate | Votes | % | |
---|---|---|---|---|
Republican | Steve Kettering | 4,461 | 59.8 | |
Democratic | Don Mason | 3,000 | 40.2 | |
Total votes | 7,461 | 100.0 | ||
Republican hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Republican | Pat Ward | 4,037 | 55.0 | |
Democratic | Alicia Claypool | 3,073 | 41.8 | |
Independent | Eric Kinman | 192 | 2.6 | |
Independent | Satro Narayan | 42 | 0.6 | |
Total votes | 7,344 | 100.0 | ||
Republican hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Republican | Joni Ernst | 4,990 | 67.5 | |
Democratic | Ruth Smith | 2,407 | 32.5 | |
Total votes | 7,397 | 100.0 | ||
Republican hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Republican | Jack Whitver | 4,773 | 63.5 | |
Democratic | John Calhoun | 2,739 | 36.5 | |
Total votes | 7,512 | 100.0 | ||
Republican hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Democratic | Liz Mathis | 13,324 | 56.0 | |
Republican | Cindy Golding | 10,322 | 43.4 | |
Constitution | Jon Tack | 151 | 0.6 | |
Total votes | 23,797 | 100.0 | ||
Democratic hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Republican | Charles Schneider | 5,378 | 56.5 | |
Democratic | Desmund Adams | 4,136 | 43.5 | |
Total votes | 9,514 | 100.0 | ||
Republican hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Republican | Julian Garrett | 4,908 | 58.2 | |
Democratic | Mark Davitt | 3,522 | 41.8 | |
Total votes | 8,430 | 100.0 | ||
Republican hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Republican | Mark Costello | 3,138 | 74.7 | |
Democratic | Steven L. Adams | 932 | 22.2 | |
Libertarian | Don W. Brantz | 132 | 3.1 | |
Total votes | 4,202 | 100.0 | ||
Republican hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Democratic | Jim Lykam | 3,803 | 73.2 | |
Republican | Michael Gonzales | 1,315 | 25.3 | |
Libertarian | Severin B. Gilbert | 77 | 1.5 | |
Total votes | 5,195 | 100.0 | ||
Democratic hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Republican | Jim Carlin | 3,707 | 54.6 | |
Democratic | Todd Wendt | 3,083 | 45.4 | |
Total votes | 6,790 | 100.0 | ||
Republican hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Republican | Annette Sweeney | 5,211 | 60.5 | |
Democratic | Tracy Freese | 3,397 | 39.5 | |
Total votes | 8,608 | 100.0 | ||
Republican hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Democratic | Eric Giddens | 7,611 | 56.8 | |
Republican | Walt Rogers | 5,635 | 42.1 | |
Libertarian | Fred Perryman | 143 | 1.1 | |
Total votes | 13,389 | 100.0 | ||
Democratic hold |
Party | Candidate | Votes | % | |
---|---|---|---|---|
Republican | Adrian Dickey | 5,091 | 55.32% | |
Democratic | Mary Stewart | 4,111 | 44.68% | |
Total votes | 9,202 | 100.0 | ||
Republican hold |
Todd Taylor is the Iowa State Senator from the 35th District. A Democrat, he has served in the Iowa Senate since 2019. Previously between 1995 and 2019 he had served in the Iowa House of Representatives from the 70th District. He received his BA from Graceland College and his BS from the University of Northern Iowa.
The 2018 Iowa State Senate elections took place as part of the biennial 2018 United States elections. Iowa voters elected state senators in half of the state senate's districts—the 25 odd-numbered state senate districts. State senators serve four-year terms in the Iowa State Senate, with half of the seats up for election each cycle.
The 2012 Iowa State Senate elections took place as part of the biennial 2012 United States elections. Iowa voters elected state senators in 26 of the state senate's 50 districts—the 25 even-numbered state senate districts and the 49th district. State senators serve four-year terms in the Iowa State Senate, with half of the seats up for election each cycle. This was the first election cycle following the 2010 census and 2011 redistricting process.
The 2002 Iowa State Senate elections took place as part of the biennial 2002 United States elections. Iowa voters elected state senators in 35 of the state senate's 50 districts—all 25 of the odd-numbered seats were up for regularly-scheduled elections and, due to the oddities of redistricting following the 2000 Census, 10 of the even-numbered sears were up as well. State senators serve four-year terms in the Iowa State Senate, with half of the seats traditionally up for election each cycle.
The 1998 Iowa State Senate elections took place as part of the biennial 1998 United States elections. Iowa voters elected state senators in half of the state senate's districts—the 25 odd-numbered state senate districts. State senators serve four-year terms in the Iowa State Senate, with half of the seats up for election each cycle. A statewide map of the 50 state Senate districts in the year 1998 is provided by the Iowa General Assembly here.
The 2020 Iowa State Senate elections took place as part of the biennial 2020 United States state legislative elections. Iowa voters elected state senators in half of the state senate's districts – the 25 even-numbered state senate districts. State senators serve four-year terms in the Iowa Senate, with half of the seats up for election each cycle.
The 1992 Iowa State Senate elections took place as part of the biennial 1992 United States elections. Iowa voters elected state senators in 32 of the state senate's 50 districts—all 25 of the even-numbered seats were up for regularly-scheduled elections and, due to the oddities of redistricting following the 1990 Census, seven of the odd-numbered seats were up as well. State senators serve four-year terms in the Iowa State Senate, with half of the seats traditionally up for election each cycle.
The 1982 Iowa State Senate elections took place as part of the biennial 1982 United States elections. Iowa voters elected state senators in 29 of the state senate's 50 districts—all 25 of the odd-numbered seats were up for regularly-scheduled elections to four-year terms and, due to the oddities of redistricting following the 1980 Census, four of the even-numbered seats were up as well. State senators serve four-year terms in the Iowa State Senate, with half of the seats traditionally up for election each cycle.
The 1980 Iowa State Senate elections took place as part of the biennial 1980 United States elections. Iowa voters elected state senators in half of the state senate's districts—the 25 even-numbered state senate districts. State senators serve four-year terms in the Iowa State Senate, with half of the seats up for election each cycle. A statewide map of the 50 state Senate districts in the year 1980 is provided by the Iowa General Assembly here.
The 1974 Iowa State Senate elections took place as part of the biennial 1974 United States elections. Iowa voters elected state senators in 26 of the state senate's districts—the 25 odd-numbered state senate districts and a special election in district 10. State senators serve four-year terms in the Iowa State Senate, with half of the seats up for regularly-scheduled election each cycle. A statewide map of the 50 state Senate districts in the year 1974 is provided by the Iowa General Assembly here.
The 1972 Iowa State Senate elections took place as part of the biennial 1972 United States elections. Iowa voters elected state senators in all of the state senate's 50 districts—the 25 even-numbered seats were up for regularly-scheduled four-year terms and, due to the oddities of redistricting following the 1970 Census, the 25 odd-numbered seats were up for shortened two-year terms. State senators typically serve four-year terms in the Iowa State Senate, with half of the seats traditionally up for election each cycle. The decennial census and redistricting process causes one cycle each decade to be disrupted.
The 1970 Iowa State Senate elections took place as part of the biennial 1970 United States elections. Iowa voters elected state senators in 27 of the state senate's 50 districts. Due to redistricting following the amending of the Iowa Constitution in 1968 mandating single-member districts, the Iowa Senate downsized from 61 to 50 members following the 1970 election. State senators typically serve four-year terms in the Iowa State Senate.
The 1962 Iowa State Senate elections took place as part of the biennial 1962 United States elections. Iowa voters elected state senators in 27 of the state senate's 50 districts. At that time, the Iowa Senate still had several multi-member districts. State senators serve four-year terms in the Iowa State Senate.
In the 1887 Iowa State Senate elections Iowa voters elected state senators to serve in the twenty-second Iowa General Assembly. Elections were held in 32 of the state senate's 50 districts. State senators serve four-year terms in the Iowa State Senate.
In the 1885 Iowa State Senate elections Iowa voters elected state senators to serve in the twenty-first Iowa General Assembly. Elections were held in 24 of the state senate's 50 districts. State senators serve four-year terms in the Iowa State Senate.
In the 1883 Iowa State Senate elections Iowa voters elected state senators to serve in the twentieth Iowa General Assembly. Elections were held in 29 of the state senate's 50 districts. State senators serve four-year terms in the Iowa State Senate.
In the 1877 Iowa State Senate elections, Iowa voters elected state senators to serve in the seventeenth Iowa General Assembly. Elections were held in 24 of the state senate's 50 districts. State senators serve four-year terms in the Iowa State Senate.
In the 1852 Iowa State Senate elections, Iowa voters elected state senators to serve in the fourth Iowa General Assembly. Following the expansion of the Iowa Senate from 19 to 31 seats in 1852, elections were held for 22 of the state senate's 31 seats. State senators serve four-year terms in the Iowa State Senate.
In the 1856 Iowa State Senate elections, Iowa voters elected state senators to serve in the sixth Iowa General Assembly. Following the expansion of the Iowa Senate from 31 to 36 seats in 1856, elections were held for 21 of the state senate's 36 seats. State senators serve four-year terms in the Iowa State Senate.
In the 1863 Iowa State Senate elections, Iowa voters elected state senators to serve in the tenth Iowa General Assembly. Following the downsizing of the Iowa Senate from 49 to 46 seats in 1863, elections were held for 34 of the state senate's 46 seats. State senators serve four-year terms in the Iowa State Senate.