Results Zach Nunn R Republican Incumbent Unopposed 48,302 98.6% By county Adair County: Zach Nunn 99.1% Adams County: Zach Nunn 99.1% Allamakee County: not in this race Appanoose County: Zach Nunn 99.1% 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: Zach Nunn 99.6% 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: Zach Nunn 99.0% 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: Zach Nunn 98.7% Davis County: Zach Nunn 99.6% Decatur County: Zach Nunn 98.7% 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: Zach Nunn 99.1% Grundy County: not in this race Guthrie County: Zach Nunn 99.2% 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: Zach Nunn 99.5% Lyon County: not in this race Madison County: Zach Nunn 98.2% 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: Zach Nunn 98.8% Montgomery County: Zach Nunn 99.3% Muscatine County: not in this race O'Brien County: not in this race Osceola County: not in this race Page County: Zach Nunn 98.6% Palo Alto County: not in this race Plymouth County: not in this race Pocahontas County: not in this race Polk County: Zach Nunn 98.3% Pottawattamie County: not in this race Poweshiek County: not in this race Ringgold County: Zach Nunn 98.5% Sac County: not in this race Scott County: not in this race 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: Zach Nunn 99.8% Union County: Zach Nunn 99.5% Van Buren County: not in this race Wapello County: Zach Nunn 99.0% Warren County: not in this race Washington County: not in this race Wayne County: Zach Nunn 98.8% 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 Adair Adams Appanoose Cass Clarke Dallas Davis Decatur Greene Guthrie Lucas Madison Monroe Montgomery Page Polk Ringgold Taylor Union Wapello Wayne 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 (21 counties) County Zach Nunn Reporting Adair 632 (99.1%) 100% Adams 346 (99.1%) 100% Appanoose 1,090 (99.1%) 100% Cass 965 (99.6%) 100% Clarke 713 (99.0%) 100% Dallas 7,042 (98.7%) 100% Davis 760 (99.6%) 100% Decatur 731 (98.7%) 100% Greene 647 (99.1%) 100% Guthrie 1,455 (99.2%) 100% Lucas 666 (99.5%) 100% Madison 1,853 (98.2%) 100% Monroe 568 (98.8%) 100% Montgomery 731 (99.3%) 100% Page 1,391 (98.6%) 100% Polk 24,590 (98.3%) 100% Ringgold 518 (98.5%) 100% Taylor 514 (99.8%) 100% Union 771 (99.5%) 100% Wapello 1,823 (99.0%) 100% Wayne 496 (98.8%) 100%
Campaign money · 2025–2026 cycle Candidate Raised Spent Cash on hand Zach Nunn $6,123,740 $5,555,815 $620,759
Totals for the two-year cycle from each campaign's own reports. 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 .
