The district Senate District 1 · Catelin Drey, Democrat Senate District 2 · Jeff Taylor, Republican Senate District 3 · Lynn Evans, Republican Senate District 4 · Tim Kraayenbrink, Republican Senate District 5 · David D. Rowley, Republican Senate District 6 · Jason Schultz, Republican Senate District 7 · Kevin Alons, Republican Senate District 8 · Mark Costello, Republican Senate District 9 · Tom Shipley, Republican Senate District 10 · Dan Dawson, Republican Senate District 11 · vacant Senate District 12 · Amy Sinclair, Republican Senate District 13 · Cherielynn Westrich, Republican Senate District 14 · Sarah Trone Garriott, Democrat Senate District 15 · Tony Bisignano, Democrat Senate District 16 · Renee Hardman, Democrat Senate District 17 · Izaah Knox, Democrat Senate District 18 · Janet Petersen, Democrat Senate District 19 · Ken Rozenboom, Republican Senate District 20 · Mike Pike, Republican Senate District 21 · Mike Bousselot, Republican Senate District 22 · Matt Blake, Democrat Senate District 23 · Jack Whitver, Republican Senate District 24 · Jesse Green, Republican Senate District 25 · Herman C. Quirmbach, Democrat Senate District 26 · Kara Warme, Republican Senate District 27 · Annette Sweeney, Republican Senate District 28 · Dennis Guth, Republican Senate District 29 · Sandy Salmon, Republican Senate District 30 · Doug Campbell, Republican Senate District 31 · William A. Dotzler Jr., Democrat Senate District 32 · Mike Klimesh, Republican Senate District 33 · Carrie Koelker, Republican Senate District 34 · Dan Zumbach, Republican Senate District 35 · Mike Zimmer, Democrat Senate District 36 · Thomas Townsend, Democrat Senate District 37 · Molly Donahue, Democrat Senate District 38 · Dave Sires, Republican Senate District 39 · Liz Bennett, Democrat Senate District 40 · Art Staed, Democrat Senate District 41 · Kerry Gruenhagen, Republican Senate District 42 · Charlie McClintock, Republican Senate District 43 · Zach Wahls, Democrat Senate District 44 · Adrian Dickey, Republican Senate District 45 · Janice Weiner, Democrat Senate District 46 · Dawn Driscoll, Republican Senate District 47 · Scott Webster, Republican Senate District 48 · Mark S. Lofgren, Republican Senate District 49 · Cindy Winckler, Democrat Senate District 50 · Jeff Reichman, Republican 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 Today’s district lines, which have been in use since the 2022 election. Each district is colored by the party of its current member.
By county Adair County: not in this race Adams County: not in this race Allamakee County: not in this race Appanoose County: not in this race Audubon County: not in this race Benton County: not in this race Black Hawk County: not in this race Boone County: not in this race Bremer County: not in this race Buchanan County: not in this race Buena Vista County: not in this race Butler County: not in this race Calhoun County: not in this race Carroll County: not in this race Cass County: not in this race Cedar County: not in this race Cerro Gordo County: not in this race Cherokee County: not in this race Chickasaw County: not in this race Clarke County: not in this race Clay County: not in this race Clayton County: not in this race Clinton County: not in this race Crawford County: not in this race Dallas County: not in this race Davis County: not in this race Decatur County: not in this race Delaware County: not in this race Des Moines County: not in this race Dickinson County: not in this race Dubuque County: not in this race Emmet County: not in this race Fayette County: not in this race Floyd County: not in this race Franklin County: not in this race Fremont County: not in this race Greene County: not in this race Grundy County: not in this race Guthrie County: not in this race Hamilton County: not in this race Hancock County: not in this race Hardin County: not in this race Harrison County: not in this race Henry County: not in this race Howard County: not in this race Humboldt County: not in this race Ida County: not in this race Iowa County: not in this race Jackson County: not in this race Jasper County: not in this race Jefferson County: not in this race Johnson County: not in this race Jones County: not in this race Keokuk County: not in this race Kossuth County: not in this race Lee County: not in this race Linn County: not in this race Louisa County: not in this race Lucas County: not in this race Lyon County: not in this race Madison County: not in this race Mahaska County: not in this race Marion County: not in this race Marshall County: not in this race Mills County: not in this race Mitchell County: not in this race Monona County: not in this race Monroe County: not in this race Montgomery County: not in this race Muscatine County: not in this race O'Brien County: not in this race Osceola County: not in this race Page County: not in this race Palo Alto County: not in this race Plymouth County: not in this race Pocahontas County: not in this race Polk County: not in this race Pottawattamie County: not in this race Poweshiek County: not in this race Ringgold County: not in this race Sac County: not in this race Scott County: Cindy Winckler 99.6% Shelby County: not in this race Sioux County: not in this race Story County: not in this race Tama County: not in this race Taylor County: not in this race Union County: not in this race Van Buren County: not in this race Wapello County: not in this race Warren County: not in this race Washington County: not in this race Wayne County: not in this race Webster County: not in this race Winnebago County: not in this race Winneshiek County: not in this race Woodbury County: not in this race Worth County: not in this race Wright County: not in this race Scott The district covers part of some of these counties; each is colored by the votes cast in the district. Darker = wider margin (under 5, 5–15, 15–30, 30+ points). Hover a county for its numbers. County-by-county numbers (1 county) County Cindy Winckler Reporting Scott 3,711 (99.6%) 100%
Campaign money · 2025–2026 cycle Totals for the two-year cycle from each campaign's own reports. State totals are cash contributions; in-kind gifts are listed on the candidate page. Names are matched across sources, so double-check against the original filing.
Races and results: civicAPI and the Iowa Secretary of State. State campaign finance: summary totals from reports filed with the Iowa Ethics & Campaign Disclosure Board . Federal: the Federal Election Commission .
