2020 Iowa Senate election

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.

2020 Iowa Senate election

← 2018 November 3, 2020 2022 →

25 out of 50 seats in the Iowa State Senate
26 seats needed for a majority
  Majority party Minority party
 
Leader Charles Schneider Janet Petersen
Party Republican Democratic
Leader's seat 22nd district
(retiring)
18th district
Last election 32 18
Seats after 32 18
Seat change Steady Steady
Popular vote 442,907 304,302
Percentage 58.87% 40.45%

Results of the elections:
     Republican gain      Democratic gain
     Republican hold      Democratic hold
     No election

President of the Senate before election

Charles Schneider
Republican

Elected President of the Senate

Jake Chapman
Republican

A statewide map of the 50 state Senate districts in the 2020 elections is provided by the Iowa General Assembly here.

The primary election on June 2, 2020, determined which candidates appeared on the November 3 general election ballot. The filing deadline was March 13.[1][2]

Following the previous election in 2018, Republicans retained control of the Iowa Senate with 32 seats to Democrats' 18 seats. To reclaim control of the chamber from Republicans, the Democrats needed to net eight Senate seats.

Republicans retained control of the Iowa Senate following the 2020 general election, with the balance of power remaining unchanged.

Predictions

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Source Ranking As of
The Cook Political Report[3] Likely R October 21, 2020

Summary of results

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  • NOTE: The 25 odd-numbered districts did not hold elections in 2020 so they are not listed here.
State Senate District Incumbent Party Elected Senator Party
2nd Randy Feenstra Rep Jeff Taylor Rep
4th Dennis Guth Rep Dennis Guth Rep
6th Mark Segebart Rep Craig Steven Williams Rep
8th Dan Dawson Rep Dan Dawson Rep
10th Jake Chapman Rep Jake Chapman Rep
12th Mark Costello Rep Mark Costello Rep
14th Amy Sinclair Rep Amy Sinclair Rep
16th Nate Boulton Dem Nate Boulton Dem
18th Janet Petersen Dem Janet Petersen Dem
20th Brad Zaun Rep Brad Zaun Rep
22nd Charles Schneider Rep Sarah Trone Garriott Dem
24th Jerry Behn Rep Jesse Green Rep
26th Waylon Brown Rep Waylon Brown Rep
28th Michael Breitbach Rep Mike Klimesh Rep
30th Eric Giddens Dem Eric Giddens Dem
32nd Craig Johnson Rep Craig Johnson Rep
34th Liz Mathis Dem Liz Mathis Dem
36th Jeff Edler Rep Jeff Edler Rep
38th Tim Kapucian Rep Dawn Driscoll Rep
40th Ken Rozenboom Rep Ken Rozenboom Rep
42nd Rich Taylor Dem Jeff Reichman Rep
44th Thomas Greene Rep Tim Goodwin Rep
46th Mark Lofgren Rep Mark Lofgren Rep
48th Dan Zumbach Rep Dan Zumbach Rep
50th Pam Jochum Dem Pam Jochum Dem

Source:[4][5]

Closest races

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Seats where the margin of victory was under 10%:

  1. State Senate district 22, 0.36% gain
  2. State Senate district 20, 2.28%
  3. State Senate district 30, 3.02%
  4. State Senate district 8, 4.42%

Detailed results

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  • Reminder: Only even-numbered Iowa Senate seats were up for election in 2020; therefore, odd-numbered seats were not having elections in 2020 & are not shown.

District 2District 4District 6District 8District 10District 12District 14District 16District 18District 20District 22District 24District 26District 28District 30District 32District 34District 36District 38District 40District 42District 44District 46District 48District 50

  • Note: If a district does not list a primary, then that district did not having a competitive primary (i.e., there may have only been one candidate file for that district).[6]

District 2

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Iowa Senate, District 2 General Election, 2020
Party Candidate Votes %
Republican Jeff Taylor 26,395 100.0
Total votes 26,395 100.0
Republican hold

District 4

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Iowa Senate, District 4 General Election, 2020
Party Candidate Votes %
Republican Dennis Guth (incumbent) 25,450 100.0
Total votes 25,450 100.0
Republican hold

District 6

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Iowa Senate, District 6 Republican Primary Election, 2020
Party Candidate Votes %
Republican Craig Williams 3,132 60.9
Republican Heath Hansen 2,007 39.1
Total votes 5,139 100.0
Iowa Senate, District 6 General Election, 2020
Party Candidate Votes %
Republican Craig Steven Williams 18,919 69.2
Democratic C.J. Petersen 8,418 30.8
Total votes 27,337 100.0
Republican hold

District 8

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Iowa Senate, District 8 General Election, 2020
Party Candidate Votes %
Republican Dan Dawson (incumbent) 12,391 52.2
Democratic Steve Gorman 11,344 47.8
Total votes 23,735 100.0
Republican hold

District 10

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Iowa Senate, District 10 General Election, 2020
Party Candidate Votes %
Republican Jake Chapman (incumbent) 24,538 62.5
Democratic Warren Andrew Varley 14,704 37.5
Total votes 39,242 100.0
Republican hold

District 12

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Iowa Senate, District 12 Republican Primary Election, 2020
Party Candidate Votes %
Republican Mark Costello (incumbent) 5,749 59.4
Republican Richard Crouch 3,923 40.6
Total votes 9,672 100.0
Iowa Senate, District 12 General Election, 2020
Party Candidate Votes %
Republican Mark Costello (incumbent) 20,165 69.1
Democratic Joseph "Joey" Norris 8,999 30.9
Total votes 29,164 100.0
Republican hold

District 14

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Iowa Senate, District 14 General Election, 2020
Party Candidate Votes %
Republican Amy Sinclair (incumbent) 24,623 100.0
Total votes 24,623 100.0
Republican hold

District 16

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Iowa Senate, District 16 General Election, 2020
Party Candidate Votes %
Democratic Nate Boulton (incumbent) 16,868 76.8
Libertarian ToyA S. Johnson 5,097 23.2
Total votes 21,965 100.0
Democratic hold

District 18

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Iowa Senate, District 18 General Election, 2020
Party Candidate Votes %
Democratic Janet Petersen (incumbent) 20,696 100.0
Total votes 20,696 100.0
Democratic hold

District 20

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Iowa Senate, District 20 General Election, 2020
Party Candidate Votes %
Republican Brad Zaun (incumbent) 21,943 51.1
Democratic Rhonda Martin 20,968 48.9
Total votes 42,911 100.0
Republican hold

District 22

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Iowa Senate, District 22 Republican Primary Election, 2020
Party Candidate Votes %
Republican Scott Cirksena 3,683 79.3
Republican Porsha Hart 964 20.7
Total votes 4,647 100.0
Iowa Senate, District 22 Democratic Primary Election, 2020
Party Candidate Votes %
Democratic Sarah Trone Garriott 4,300 47.9
Democratic Tricia Gavin 3,480 38.7
Democratic Michael Libbie 1,206 13.4
Total votes 8,986 100.0
Iowa Senate, District 22 General Election, 2020
Party Candidate Votes %
Democratic Sarah Trone Garriott 23,110 50.2
Republican Scott Cirksena 22,946 49.8
Total votes 46,056 100.0
Democratic gain from Republican

District 24

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Iowa Senate, District 24 Republican Primary Election, 2020
Party Candidate Votes %
Republican Jesse Green 2,350 40.8
Republican Chad Behn 1,837 31.9
Republican Todd Rasmussen 1,127 19.6
Republican Joshua D. Dyer 442 7.7
Total votes 5,756 100.0
Iowa Senate, District 24 Democratic Primary Election, 2020
Party Candidate Votes %
Democratic Cynthia Oppedal Paschen 3,172 67.2
Democratic Keith D. Puntenney 1,548 32.8
Total votes 4,720 100.0
Iowa Senate, District 24 General Election, 2020
Party Candidate Votes %
Republican Jesse Green 21,732 65.7
Democratic Cynthia Oppedal Paschen 11,327 34.3
Total votes 33,059 100.0
Republican hold

District 26

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Iowa Senate, District 26 General Election, 2020
Party Candidate Votes %
Republican Waylon Brown (incumbent) 20,655 65.5
Democratic Deb Scharper 10,858 34.5
Total votes 31,513 100.0
Republican hold

District 28

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Iowa Senate, District 28 General Election, 2020
Party Candidate Votes %
Republican Mike Klimesh 19,630 62.5
Democratic Matt Tapscott 11,785 37.5
Total votes 31,415 100.0
Republican hold

District 30

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Iowa Senate, District 30 General Election, 2020
Party Candidate Votes %
Democratic Eric Giddens (incumbent) 17,543 51.5
Republican Harold Youngblut 16,516 48.5
Total votes 34,059 100.0
Democratic hold

District 32

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Iowa Senate, District 32 General Election, 2020
Party Candidate Votes %
Republican Craig Johnson (incumbent) 19,990 61.2
Democratic Pam Egli 12,700 38.8
Total votes 32,690 100.0
Republican hold

District 34

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Iowa Senate, District 34 General Election, 2020
Party Candidate Votes %
Democratic Liz Mathis (incumbent) 29,342 100.0
Total votes 29,342 100.0
Democratic hold

District 36

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Iowa Senate, District 36 General Election, 2020
Party Candidate Votes %
Republican Jeff Edler (incumbent) 16,841 60.6
Democratic David Degner 10,957 39.4
Total votes 27,798 100.0
Republican hold

District 38

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Iowa Senate, District 38 Republican Primary Election, 2020
Party Candidate Votes %
Republican Dawn Driscoll 2,402 45.0
Republican Garrett Dozark 1,912 35.8
Republican Bruce Adams 1,025 19.2
Total votes 5,339 100.0
Iowa Senate, District 38 Democratic Primary Election, 2020
Party Candidate Votes %
Democratic Ivy Schuster 3,642 81.7
Democratic Alvin Aragon 815 18.3
Total votes 4,457 100.0
Iowa Senate, District 38 General Election, 2020
Party Candidate Votes %
Republican Dawn Driscoll 21,238 64.0
Democratic Ivy Schuster 11,948 36.0
Total votes 33,186 100.0
Republican hold

District 40

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Iowa Senate, District 40 General Election, 2020
Party Candidate Votes %
Republican Ken Rozenboom (incumbent) 22,022 71.5
Democratic Lance Roorda 8,760 28.5
Total votes 30,782 100.0
Republican hold

District 42

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Iowa Senate, District 42 Republican Primary Election, 2020
Party Candidate Votes %
Republican Jeff Reichman 3,338 73.8
Republican Nancy Amos 1,187 26.2
Total votes 4,525 100.0
Iowa Senate, District 42 General Election, 2020
Party Candidate Votes %
Republican Jeff Reichman 16,766 59.9
Democratic Rich Taylor (incumbent) 11,228 40.1
Total votes 27,994 100.0
Republican gain from Democratic

District 44

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Iowa Senate, District 44 Republican Primary Election, 2020
Party Candidate Votes %
Republican Tim Goodwin 3,217 71.6
Republican Matthew Rinker 1,277 28.4
Total votes 4,494 100.0
Iowa Senate, District 44 Democratic Primary Election, 2020
Party Candidate Votes %
Democratic Tom Courtney 3,623 72.4
Democratic Kevin K. Warth 790 15.8
Democratic Rex Troute 592 11.8
Total votes 5,005 100.0
Iowa Senate, District 44 General Election, 2020
Party Candidate Votes %
Republican Tim Goodwin 16,447 56.8
Democratic Tom Courtney 12,493 43.2
Total votes 28,940 100.0
Republican hold

District 46

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Iowa Senate, District 46 General Election, 2020
Party Candidate Votes %
Republican Mark S. Lofgren (incumbent) 18,479 59.4
Democratic Chris Brase 12,653 40.6
Total votes 31,132 100.0
Republican hold

District 48

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Iowa Senate, District 48 General Election, 2020
Party Candidate Votes %
Republican Dan Zumbach (incumbent) 22,544 65.2
Democratic Eric Green 12,050 34.8
Total votes 34,594 100.0
Republican hold

District 50

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Iowa Senate, District 50 General Election, 2020
Party Candidate Votes %
Democratic Pam Jochum (incumbent) 18,044 58.7
Republican Jennifer Smith 12,677 41.3
Total votes 30,721 100.0
Democratic hold

See also

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References

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  1. ^ "Primary Election 2020 Canvass Summary" (PDF). Iowa Secretary of State. Retrieved June 29, 2020.
  2. ^ "Candidate List June 2, 2020 Primary Election" (PDF). Iowa Secretary of State. Retrieved April 14, 2020.
  3. ^ "October Overview: Handicapping the 2020 State Legislature Races". The Cook Political Report. Retrieved November 1, 2020.
  4. ^ "Legislators". Iowa State Senate. Retrieved April 14, 2020.
  5. ^ "General Election 2020 Canvass Summary" (PDF). Iowa Secretary of State. Retrieved December 2, 2020.
  6. ^ "Primary Election 2020 Canvass Summary" (PDF). Iowa Secretary of State. Retrieved June 29, 2020.
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