List of members of the 90th session of the Iowa Senate

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. The 2023–25 term is part of the 90th General Assembly. As of January 9, 2023^[update], 16 of those seats are held by Democrats and 34 by Republicans. 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.^[1]

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.^[1] Should a senator resign from office before his or her term expires, the governor calls a special election to replace the senator.^[2] Senators are not term-limited.^[3]

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

Party composition

Party composition as of January 9, 2023^[update].
Affiliation	Members
Republican	34
Democratic	16
Total	50

Leadership

Senate leadership as of January 9, 2023^[update].
Position	Name	Party	District
President of the Senate	Amy Sinclair	Republican	12
President pro tempore	Brad Zaun	Republican	22
Majority Leader	Jack Whitver	Republican	23
Minority Leader	Zach Wahls	Democratic	43

Senators

Iowa senators as of July 10, 2023^[update]
District	Jurisdiction(s) represented	Senator	Party	First elected	Standing committee leader	Appropriations subcommittee member
1	Woodbury,	Rocky De Witt	Republican	2022	N/A	Transportation, Infrastructure, and Capitals
2	Plymouth and Sioux	Jeff Taylor	Republican	2020	Education (Vice Chair)	Education (Chair)
3	Osceola, O'Brien, Clay, Cherokee, and Buena Vista	Lynn Evans	Republican	2022		Education
4	Calhoun, Pocahontas, Sac, and Webster	Tim Kraayenbrink	Republican	2014	Appropriations (Chair), Technology (Vice Chair)
5	Clay, Dickinson, Emmet, Kossuth, Palo Alto and Winnebago	Dave Rowley	Republican	2020		Administration and Regulation Appropriations (Chair)
6	Audubon, Carroll, Crawford, Ida, and Shelby	Jason Schultz	Republican	2014	State Government (Chair)
7	Cherokee, Monona, Plymouth, and Woodbury	Kevin Alons	Republican	2022		Health and Human Services
8	Fremont, Harrison, Mills, and Pottawattamie,	Mark Costello	Republican	2014^[a]	Ethics (Vice Chair)	Health and Human Services (Chair)
9	Adams, Cass, Montgomery, Page, Ringgold, Taylor, and Union	Tom Shipley	Republican	2014	Ethics (Chair), Natural Resources and Environment (Vice Chair)	Agriculture and Natural Resources
10	Pottawattamie	Dan Dawson	Republican	2016	Ways and Means (Chair)
11	Marion and Warren	Julian Garrett	Republican	2013^[b]	Judiciary (Vice Chair)	Justice System (Chair)
12	Adair, Appanoose, Clarke, Dallas, Decatur, Lucas, Madison, Union and Wayne	Amy Sinclair	Republican	2012	Government Oversight (Chair), Rules and Administration (Vice Chair)
13	Appanoose, Davis, Monroe, and Wapello	Cherielynn Westrich	Republican	2022		Justice System (Vice Chair)
14	Dallas	Sarah Trone Garriott	Democratic	2020	Health and Human Services (Ranking Member)	Health and Human Services
15	Polk	Tony Bisignano	Democratic	2014	State Government (Ranking Member), Agriculture (Ranking Member)
16	Dallas and Polk	Claire Celsi	Democratic	2018	Government Oversight (Ranking Member)	Administration and Regulation (Ranking Member)
17	Polk	Izaah Knox	Democratic	2022	Natural Resources and Environment (Ranking Member)	Education
18	Polk	Janet Petersen	Democratic	2012	Appropriations (Ranking Member)	Transportation, Infrastructure, and Capitals (Ranking Member)
19	Jasper, Mahaska, and Marion	Ken Rozenboom	Republican	2012	Agriculture (Vice Chair), Education (Chair)
20	Polk	Nate Boulton	Democratic	2016	Judiciary (Ranking Member)	Justice System
21	Polk	Mike Bousselot	Democratic	2022	Commerce (Vice Chair)	Transportation, Infrastructure, and Capitals (Vice Chair)
22	Polk	Brad Zaun	Republican	2004	Judiciary (Chair)
23	Dallas and Polk	Jack Whitver	Republican	2011^[c]	Rules and Administration (Chair)
24	Boone, Dallas, Greene, Guthrie, and Story	Jesse Green	Republican	2020	Local Government (Chair)
25	Story	Herman Quirmbach	Democratic	2002	Education (Ranking Member)	Economic Development
26	Marshall and Story	Jeff Edler	Republican	2016	Health and Human Services (Chair)	Health and Human Services (Vice Chair)
27	Black Hawk, Grundy, Hardin, Poweshiek, and Tama	Annette Sweeney	Republican	2018	Natural Resources and Environment (Chair)	Agriculture and Natural Resources (Vice Chair)
28	Franklin, Hancock, Hamilton, Humbolt, and Wright	Dennis Guth	Republican	2012	N/A	Administration and Regulation (Vice Chair)
29	Bremer, Butler, Chickasaw, and Floyd	Sandy Salmon	Republican	2022	Veterans Affairs (Vice Chair)	Justice System
30	Cerro Gordo, Floyd, Mitchell, and Worth	Vacant^[4]
31	Black Hawk	William Dotzler	Democratic	2002	Veterans Affairs (Ranking Member)	Economic Development (Ranking Member)
32	Allamakee, Clayton, Fayette, Howard, and Winneshiek	Mike Klimesh	Republican	2020	Government Oversight (Vice Chair); Transportation (Chair)	Health and Human Services
33	Dubuque, Jones and Jackson	Carrie Koelker	Republican	2018	Was and Means (Vice Chair)	Transportation, Infrastructure, and Capitals (Chair)
34	Black Hawk, Buchanan, Delaware, Dubuque, and Fayette	Dan Zumbach	Republican	2012	Appropriations(Vice Chair)	Agriculture and Natural Resources (Chair)
35	Clinton, Jackson, and Scott	Vacant^[5]
36	Dubuque	Pam Jochum	Democratic	2008	Ways and Means(Ranking Member)	Administration and Regulation
37	Linn	Molly Donahue	Democratic	2022	Workforce (Ranking Member)	Health and Human Services (Ranking Member)
38	Benton, Black Hawk, and Tama	Eric Giddens	Democratic	2019	Commerce (Ranking Member)	Agriculture and Natural Resources (Ranking Member)
39	Linn	Liz Bennett	Democratic	2022	Technology (Ranking Member)	Transportation, Infrastructure, and Capitals
40	Linn	Todd Taylor	Democratic	2018	Transportation (Ranking Member)	Justice System (Ranking Member)
41	Cedar, Muscatine, and Scott	Kerry Gruenhagen	Republican	2022		Economic Development
42	Benton and Linn	Charlie McClintock	Republican	2022	Workforce (Vice Chair)	Justice System
43	Johnson	Zach Wahls	Democratic	2018	Rules and Administration (Ranking Member)
44	Henry, Jefferson, Keokuk, Mahaska, and Van Buren	Adrian Dickey	Republican	2021^[d]	Workforce (Chair); Transportation (Vice Chair)	Economic Development
45	Johnson	Janice Weiner	Democratic	2022	Local Government (Ranking Member)	Agriculture and Natural Resources
46	Iowa, Johnson and Washington	Dawn Driscoll	Republican	2020	Agriculture (Chair)
47	Scott	Scott Webster	Republican	2022		Administration and Regulation
48	Des Moines, Henry, Louisa, and Muscatine	Mark Lofgren	Republican	2016	Local Government (Vice Chair)	Economic Development (Chair)
49	Scott	Cindy Winckler	Democratic	2022	Ethics (Ranking Member)	Education (Ranking Member)
50	Des Moines and Lee	Jeff Reichman	Republican	2020	Veterans Affairs (Chair)

Notes

^ First elected in a December 30, 2014 special election.
^ First elected in a November 19, 2013 special election.
^ First elected in a January 18, 2011 special election.
^ First elected in a January 26, 2021 special election.

References

General

"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

^ ^a ^b Legislative Guide to the Iowa General Assembly (PDF). Legal Services Division, Iowa Legislative Services Agency. December 2006. p. 2. Retrieved October 23, 2012.
^ "Iowa Code 2011 + Supplement §69.14" (PDF). January 9, 2012. Retrieved October 23, 2012.
^ National Conference of State Legislatures (June 2009). "The Term Limited States". Retrieved October 23, 2012.
^ Republican Waylon Brown resigned on July 10, 2024.[1]
^ Republican Chris Cournoyer resigned on December 16, 2024 after being appointed as Lieutenant Governor.[2]

External links

Iowa General Assembly

[4] First elected in a December 30, 2014 special election.

[5] First elected in a November 19, 2013 special election.

[6] First elected in a January 18, 2011 special election.

[9] First elected in a January 26, 2021 special election.

[GAGuidep2-1] Legislative Guide to the Iowa General Assembly (PDF). Legal Services Division, Iowa Legislative Services Agency. December 2006. p. 2. Retrieved October 23, 2012.

[2] "Iowa Code 2011 + Supplement §69.14" (PDF). January 9, 2012. Retrieved October 23, 2012.

[3] National Conference of State Legislatures (June 2009). "The Term Limited States". Retrieved October 23, 2012.

[7] Republican Waylon Brown resigned on July 10, 2024.[1]

[8] Republican Chris Cournoyer resigned on December 16, 2024 after being appointed as Lieutenant Governor.[2]

[1]

[2]

[3]

[a]

[b]

[c]

[4]

[5]

[d]

v t e Members of the Iowa Senate
90th General Assembly (2023–2025) President of the Senate Amy Sinclair (R) President pro tempore Brad Zaun (R) Majority Leader Jack Whitver (R) Minority Leader Pam Jochum (D)
▌Rocky De Witt (R) ▌Jeff Taylor (R) ▌Lynn Evans (R) ▌Tim Kraayenbrink (R) ▌Dave Rowley (R) ▌Jason Schultz (R) ▌Kevin Alons (R) ▌Mark Costello (R) ▌Tom Shipley (R) ▌Dan Dawson (R) ▌Julian Garrett (R) ▌Amy Sinclair (R) ▌Cherielynn Westrich (R) ▌Sarah Trone Garriott (D) ▌Tony Bisignano (D) ▌Claire Celsi (D) ▌Izaah Knox (D) ▌Janet Petersen (D) ▌Ken Rozenboom (R) ▌Nate Boulton (D) ▌Mike Bousselot (R) ▌Brad Zaun (R) ▌Jack Whitver (R) ▌Jesse Green (R) ▌Herman Quirmbach (D) ▌Jeff Edler (R) ▌Annette Sweeney (R) ▌Dennis Guth (R) ▌Sandy Salmon (R) ▌Vacant ▌William Dotzler (D) ▌Mike Klimesh (R) ▌Carrie Koelker (R) ▌Dan Zumbach (R) ▌Vacant ▌Pam Jochum (D) ▌Molly Donahue (D) ▌Eric Giddens (D) ▌Liz Bennett (D) ▌Todd Taylor (D) ▌Kerry Gruenhagen (R) ▌Charlie McClintock (R) ▌Zach Wahls (D) ▌Adrian Dickey (R) ▌Janice Weiner (D) ▌Dawn Driscoll (R) ▌Scott Webster (R) ▌Mark Lofgren (R) ▌Cindy Winckler (D) ▌Jeff Reichman (R)
▌Republican (32) ▌Democratic (16) ▌Vacant (2) Iowa General Assembly Iowa House of Representatives Iowa Senate

v t e Statewide political officials of Iowa
U.S. senators	Chuck Grassley Joni Ernst
State government	Kim Reynolds, Governor Chris Cournoyer, Lieutenant Governor Paul Pate, Secretary of State Brenna Bird, Attorney General Rob Sand, Auditor Roby Smith, Treasurer Mike Naig, Agriculture Secretary
State Senate	Amy Sinclair, President Brad Zaun, President pro tempore Jack Whitver, Majority Leader Pam Jochum, Minority Leader
State House	Pat Grassley, Speaker John Wills, Speaker pro tempore Matt Windschitl, Majority Leader Jennifer Konfrst, Minority Leader
Supreme Court (appointed, retained by election)	Susan Christensen, Chief Justice Christopher McDonald Edward Mansfield Thomas D. Waterman Dana Oxley Matthew McDermott David N. May, Associate Justices