District
| Jurisdiction(s) represented
| Portrait
| 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[lower-alpha 1] |
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[lower-alpha 2] |
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[lower-alpha 3] |
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 |
|
Waylon Brown |
Republican |
2016 |
Commerce (Chair) |
|
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 |
|
Chris Cournoyer |
Republican |
2018 |
State Government (Vice Chair); Technology (Chair) |
Education (Vice Chair) |
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 |
Democrat |
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[lower-alpha 4] |
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 |
Democrat |
2022 |
Ethics (Ranking Member) |
Education (Ranking Member) |
50 |
Des Moines and Lee |
|
Jeff Reichman |
Republican |
2020 |
Veterans Affairs (Chair) |
|