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List of current members of the Iowa Senate

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The Iowa Senate is the upper house of the Iowa General Assembly, the legislature of the U.S. state of Iowa. One State Senator is elected from each of the state's 50 electoral districts, with each Senate district containing two House of Representatives districts. As of January 28, 2025, 16 of those seats are held by Democrats and 34 by Republicans.[1] The presiding officer is the President of the Senate, who is chosen by the majority party and elected by the Senate. In addition, senators elect a President pro tempore, chosen in the same manner as the President, and the respective party caucuses elect a majority and minority leader, a majority and minority whip, and assistant party leaders.[2]

Senators serve for four-year terms and are elected in even-numbered years, with half of the Senate elected every two years in the general election on election day, as part of the presidential and midterm elections. Newly elected senators are sworn in and begin work on the second Monday of January.[2] Should a senator resign from office before his or her term expires, the governor calls a special election to replace the senator.[3] Senators are not term-limited.[4]

Senators generally serve on several standing committees and often serve on joint appropriations subcommittees, permanent statutory committees and various boards and commissions.

Party composition

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Party composition as of January 28, 2025.
Affiliation Members
Republican 34
Democratic 16
Total
 50

Leadership

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Senate leadership as of August 4, 2025
PositionNamePartyDistrict
President of the Senate Amy Sinclair Republican 12
President pro tempore Ken Rozenboom Republican 19
Majority Leader Jack Whitver Republican 23
Minority Leader Janice Weiner Democratic 45

Senators

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Iowa senators as of August 26, 2025
District
County(ies) represented
Portrait
Senator
Party
First
elected
Standing
committee
leader
Appropriations
subcommittee
member
1 Woodbury BERJAYA Catelin Drey Democratic 2025[a]
2 Plymouth and Sioux BERJAYA Jeff Taylor Republican 2020 Education (Vice Chair) Education (Chair)
3 Osceola, O'Brien, Clay, Cherokee, and Buena Vista BERJAYA Lynn Evans Republican 2022 Education
4 Calhoun, Pocahontas, Sac, and Webster BERJAYA Tim Kraayenbrink Republican 2014 Appropriations (Chair), Technology (Vice Chair)
5 Clay, Dickinson, Emmet, Kossuth, Palo Alto and Winnebago BERJAYA Dave Rowley Republican 2020 Administration and Regulation Appropriations (Chair)
6 Audubon, Carroll, Crawford, Ida, and Shelby BERJAYA Jason Schultz Republican 2014 State Government (Chair)
7 Cherokee, Monona, Plymouth, and Woodbury BERJAYA Kevin Alons Republican 2022 Health and Human Services
8 Fremont, Harrison, Mills, and Pottawattamie, BERJAYA Mark Costello Republican 2014[b] Ethics (Vice Chair) Health and Human Services (Chair)
9 Adams, Cass, Montgomery, Page, Ringgold, Taylor, and Union BERJAYA Tom Shipley Republican 2014 Ethics (Chair), Natural Resources and Environment (Vice Chair) Agriculture and Natural Resources
10 Pottawattamie BERJAYA Dan Dawson Republican 2016 Ways and Means (Chair)
11 Marion and Warren BERJAYA Julian Garrett Republican 2013[c] Judiciary (Vice Chair) Justice System (Chair)
12 Adair, Appanoose, Clarke, Dallas, Decatur, Lucas, Madison, Union and Wayne BERJAYA Amy Sinclair Republican 2012 Government Oversight (Chair), Rules and Administration (Vice Chair)
13 Appanoose, Davis, Monroe, and Wapello BERJAYA Cherielynn Westrich Republican 2022 Justice System (Vice Chair)
14 Dallas BERJAYA Sarah Trone Garriott Democratic 2020 Health and Human Services (Ranking Member) Health and Human Services
15 Polk BERJAYA Tony Bisignano Democratic 2014 State Government (Ranking Member), Agriculture (Ranking Member)
16 Dallas and Polk BERJAYA Claire Celsi Democratic 2018 Government Oversight (Ranking Member) Administration and Regulation (Ranking Member)
17 Polk BERJAYA Izaah Knox Democratic 2022 Natural Resources and Environment (Ranking Member) Education
18 Polk Official Portrait for the 85th General Assembly Janet Petersen Democratic 2012 Appropriations (Ranking Member) Transportation, Infrastructure, and Capitals (Ranking Member)
19 Jasper, Mahaska, and Marion Official Portrait for the 85th General Assembly Ken Rozenboom Republican 2012 Agriculture (Vice Chair), Education (Chair)
20 Polk BERJAYA Mike Pike Republican 2024
21 Polk BERJAYA Mike Bousselot Republican 2022 Commerce (Vice Chair) Transportation, Infrastructure, and Capitals (Vice Chair)
22 Polk BERJAYA Matt Blake Democratic 2024
23 Dallas and Polk Official Portrait for the 85th General Assembly Jack Whitver Republican 2011[d] Rules and Administration (Chair)
24 Boone, Dallas, Greene, Guthrie, and Story BERJAYA Jesse Green Republican 2020 Local Government (Chair)
25 Story Official Portrait for the 85th General Assembly Herman Quirmbach Democratic 2002 Education (Ranking Member) Economic Development
26 Marshall and Story BERJAYA Kara Warme Republican 2024
27 Black Hawk, Grundy, Hardin, Poweshiek, and Tama BERJAYA Annette Sweeney Republican 2018 Natural Resources and Environment (Chair) Agriculture and Natural Resources (Vice Chair)
28 Franklin, Hancock, Hamilton, Humbolt, and Wright Official Portrait for the 85th General Assembly Dennis Guth Republican 2012 N/A Administration and Regulation (Vice Chair)
29 Bremer, Butler, Chickasaw, and Floyd BERJAYA Sandy Salmon Republican 2022 Veterans Affairs (Vice Chair) Justice System
30 Cerro Gordo, Floyd, Mitchell, and Worth BERJAYA Doug Campbell Republican 2024
31 Black Hawk Official Portrait for the 85th General Assembly William Dotzler Democratic 2002 Veterans Affairs (Ranking Member) Economic Development (Ranking Member)
32 Allamakee, Clayton, Fayette, Howard, and Winneshiek BERJAYA Mike Klimesh Republican 2020 Government Oversight (Vice Chair); Transportation (Chair) Health and Human Services
33 Dubuque, Jones and Jackson BERJAYA Carrie Koelker Republican 2018 Was and Means (Vice Chair) Transportation, Infrastructure, and Capitals (Chair)
34 Black Hawk, Buchanan, Delaware, Dubuque, and Fayette Official Portrait for the 85th General Assembly Dan Zumbach Republican 2012 Appropriations(Vice Chair) Agriculture and Natural Resources (Chair)
35 Clinton, Jackson, and Scott BERJAYA Mike Zimmer Democratic 2025[e]
36 Dubuque BERJAYA Thomas Townsend Democratic 2024
37 Linn BERJAYA Molly Donahue Democratic 2022 Workforce (Ranking Member) Health and Human Services (Ranking Member)
38 Benton, Black Hawk, and Tama BERJAYA Dave Sires Republican 2024
39 Linn BERJAYA Liz Bennett Democratic 2022 Technology (Ranking Member) Transportation, Infrastructure, and Capitals
40 Linn BERJAYA Art Staed Democratic 2024
41 Cedar, Muscatine, and Scott BERJAYA Kerry Gruenhagen Republican 2022 Economic Development
42 Benton and Linn BERJAYA Charlie McClintock Republican 2022 Workforce (Vice Chair) Justice System
43 Johnson BERJAYA Zach Wahls Democratic 2018 Rules and Administration (Ranking Member)
44 Henry, Jefferson, Keokuk, Mahaska, and Van Buren BERJAYA Adrian Dickey Republican 2021[f] Workforce (Chair); Transportation (Vice Chair) Economic Development
45 Johnson BERJAYA Janice Weiner Democratic 2022 Local Government (Ranking Member) Agriculture and Natural Resources
46 Iowa, Johnson and Washington BERJAYA Dawn Driscoll Republican 2020 Agriculture (Chair)
47 Scott BERJAYA Scott Webster Republican 2022 Administration and Regulation
48 Des Moines, Henry, Louisa, and Muscatine BERJAYA Mark Lofgren Republican 2016 Local Government (Vice Chair) Economic Development (Chair)
49 Scott BERJAYA Cindy Winckler Democratic 2022 Ethics (Ranking Member) Education (Ranking Member)
50 Des Moines and Lee BERJAYA Jeff Reichman Republican 2020 Veterans Affairs (Chair)

Notes

[edit]
  1. ↑ First elected in an August 26, 2025 special election
  2. ↑ First elected in a December 30, 2014 special election.
  3. ↑ First elected in a November 19, 2013 special election.
  4. ↑ First elected in a January 18, 2011 special election.
  5. ↑ First elected in a January 28, 2025 special election.
  6. ↑ First elected in a January 26, 2021 special election.

See also

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References

[edit]

General

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  • "Journal of the Senate, Eighty-Fourth General Assembly, 2011 Regular Session" (PDF). State of Iowa. Retrieved July 15, 2012.
  • "1857 Constitution of the State of Iowa – Codified". Retrieved July 15, 2012.
  • Iowa Official Register, 2011-2012. Vol. 74. Iowa General Assembly, Legislative Services Agency, Glen Dickinson, Director.
  • "Senate, General Assembly: 86 (01/12/2015 – 01/08/2017)". Iowa General Assembly. Retrieved February 15, 2015.
  • "Leadership, General Assembly: 86 (01/12/2015 – 01/08/2017)". Iowa General Assembly. Retrieved February 15, 2015.
  • "Election Results and Statistics". Iowa Secretary of State. Retrieved February 15, 2015.

Specific

[edit]
  1. ↑ "Democrat wins Jackson County Senate seat in special election". January 28, 2025.
  2. 1 2 Legislative Guide to the Iowa General Assembly (PDF). Legal Services Division, Iowa Legislative Services Agency. December 2006. p. 2. Retrieved October 23, 2012.
  3. ↑ "Iowa Code 2011 + Supplement §69.14" (PDF). January 9, 2012. Retrieved October 23, 2012.
  4. ↑ National Conference of State Legislatures (June 2009). "The Term Limited States". Retrieved October 23, 2012.
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