Elections › Tuesday, June 2, 2026
Primary
Governor · Republican primary
Tuesday, June 2, 2026 · 100% reporting · Past races for this seat
Results
- Zach Lahn R RepublicanWinner80,77537.6%
- Randy Feenstra R Republican79,14236.9%
- Adam Steen R Republican31,10614.5%
- Brad Sherman R Republican15,0997.0%
- Eddie Andrews R Republican7,6963.6%
By county
County-by-county numbers (99 counties)
| County | Zach Lahn | Randy Feenstra | Adam Steen | Brad Sherman | Reporting |
|---|---|---|---|---|---|
| Adair | 316 (47.0%) | 194 (28.8%) | 82 (12.2%) | 39 (5.8%) | 100% |
| Adams | 162 (43.9%) | 122 (33.1%) | 54 (14.6%) | 17 (4.6%) | 100% |
| Allamakee | 418 (35.0%) | 437 (36.6%) | 137 (11.5%) | 115 (9.6%) | 100% |
| Appanoose | 448 (37.8%) | 435 (36.7%) | 217 (18.3%) | 50 (4.2%) | 100% |
| Audubon | 363 (52.8%) | 174 (25.3%) | 123 (17.9%) | 18 (2.6%) | 100% |
| Benton | 1,420 (52.2%) | 853 (31.4%) | 211 (7.8%) | 155 (5.7%) | 100% |
| Black Hawk | 2,017 (37.2%) | 2,239 (41.3%) | 657 (12.1%) | 337 (6.2%) | 100% |
| Boone | 874 (40.9%) | 748 (35.0%) | 326 (15.3%) | 98 (4.6%) | 100% |
| Bremer | 560 (42.7%) | 475 (36.2%) | 148 (11.3%) | 99 (7.5%) | 100% |
| Buchanan | 416 (32.5%) | 520 (40.6%) | 104 (8.1%) | 184 (14.3%) | 100% |
| Buena Vista | 478 (43.0%) | 414 (37.2%) | 83 (7.5%) | 101 (9.1%) | 100% |
| Butler | 411 (41.3%) | 341 (34.3%) | 75 (7.5%) | 142 (14.3%) | 100% |
| Calhoun | 262 (34.8%) | 316 (41.9%) | 124 (16.4%) | 26 (3.5%) | 100% |
| Carroll | 687 (36.0%) | 556 (29.1%) | 578 (30.3%) | 55 (2.9%) | 100% |
| Cass | 289 (27.2%) | 401 (37.7%) | 301 (28.3%) | 47 (4.4%) | 100% |
| Cedar | 525 (40.7%) | 517 (40.0%) | 125 (9.7%) | 78 (6.0%) | 100% |
| Cerro Gordo | 653 (24.9%) | 1,005 (38.3%) | 391 (14.9%) | 505 (19.2%) | 100% |
| Cherokee | 798 (44.3%) | 788 (43.8%) | 92 (5.1%) | 86 (4.8%) | 100% |
| Chickasaw | 164 (28.6%) | 266 (46.3%) | 83 (14.5%) | 51 (8.9%) | 100% |
| Clarke | 274 (36.0%) | 242 (31.8%) | 139 (18.3%) | 83 (10.9%) | 100% |
| Clay | 691 (40.2%) | 698 (40.6%) | 136 (7.9%) | 138 (8.0%) | 100% |
| Clayton | 470 (39.3%) | 485 (40.6%) | 95 (8.0%) | 115 (9.6%) | 100% |
| Clinton | 908 (35.5%) | 1,085 (42.4%) | 253 (9.9%) | 236 (9.2%) | 100% |
| Crawford | 624 (43.6%) | 364 (25.4%) | 345 (24.1%) | 52 (3.6%) | 100% |
| Dallas | 3,042 (39.3%) | 2,346 (30.3%) | 1,752 (22.6%) | 254 (3.3%) | 100% |
| Davis | 282 (33.8%) | 322 (38.6%) | 162 (19.4%) | 49 (5.9%) | 100% |
| Decatur | 277 (35.0%) | 292 (36.9%) | 130 (16.4%) | 60 (7.6%) | 100% |
| Delaware | 480 (41.5%) | 437 (37.7%) | 143 (12.3%) | 65 (5.6%) | 100% |
| Des Moines | 824 (32.5%) | 1,026 (40.4%) | 441 (17.4%) | 157 (6.2%) | 100% |
| Dickinson | 852 (36.6%) | 1,099 (47.2%) | 144 (6.2%) | 185 (7.9%) | 100% |
| Dubuque | 1,785 (37.8%) | 2,053 (43.4%) | 409 (8.7%) | 330 (7.0%) | 100% |
| Emmet | 248 (36.6%) | 285 (42.1%) | 47 (6.9%) | 90 (13.3%) | 100% |
| Fayette | 442 (37.3%) | 435 (36.7%) | 191 (16.1%) | 90 (7.6%) | 100% |
| Floyd | 298 (38.3%) | 308 (39.5%) | 56 (7.2%) | 100 (12.8%) | 100% |
| Franklin | 331 (40.9%) | 269 (33.2%) | 82 (10.1%) | 105 (13.0%) | 100% |
| Fremont | 218 (30.7%) | 349 (49.1%) | 46 (6.5%) | 65 (9.2%) | 100% |
| Greene | 223 (31.2%) | 217 (30.4%) | 226 (31.6%) | 23 (3.2%) | 100% |
| Grundy | 422 (34.9%) | 561 (46.4%) | 120 (9.9%) | 62 (5.1%) | 100% |
| Guthrie | 682 (43.1%) | 479 (30.2%) | 262 (16.5%) | 98 (6.2%) | 100% |
| Hamilton | 558 (43.2%) | 509 (39.4%) | 133 (10.3%) | 58 (4.5%) | 100% |
| Hancock | 262 (29.1%) | 292 (32.4%) | 100 (11.1%) | 222 (24.7%) | 100% |
| Hardin | 759 (45.8%) | 599 (36.1%) | 128 (7.7%) | 115 (6.9%) | 100% |
| Harrison | 689 (43.1%) | 657 (41.1%) | 91 (5.7%) | 124 (7.8%) | 100% |
| Henry | 494 (32.6%) | 570 (37.6%) | 252 (16.6%) | 131 (8.6%) | 100% |
| Howard | 125 (31.3%) | 173 (43.4%) | 70 (17.5%) | 22 (5.5%) | 100% |
| Humboldt | 315 (38.3%) | 311 (37.8%) | 91 (11.1%) | 93 (11.3%) | 100% |
| Ida | 328 (49.4%) | 231 (34.8%) | 37 (5.6%) | 50 (7.5%) | 100% |
| Iowa | 593 (37.9%) | 424 (27.1%) | 126 (8.1%) | 389 (24.9%) | 100% |
| Jackson | 474 (34.7%) | 564 (41.3%) | 120 (8.8%) | 146 (10.7%) | 100% |
| Jasper | 1,251 (40.9%) | 960 (31.4%) | 609 (19.9%) | 144 (4.7%) | 100% |
| Jefferson | 453 (41.0%) | 411 (37.2%) | 136 (12.3%) | 71 (6.4%) | 100% |
| Johnson | 1,639 (34.4%) | 1,814 (38.1%) | 482 (10.1%) | 639 (13.4%) | 100% |
| Jones | 362 (33.7%) | 459 (42.8%) | 160 (14.9%) | 57 (5.3%) | 100% |
| Keokuk | 406 (45.0%) | 292 (32.4%) | 102 (11.3%) | 81 (9.0%) | 100% |
| Kossuth | 497 (24.2%) | 664 (32.4%) | 164 (8.0%) | 672 (32.8%) | 100% |
| Lee | 357 (24.2%) | 590 (40.0%) | 349 (23.7%) | 123 (8.3%) | 100% |
| Linn | 4,924 (37.6%) | 4,629 (35.4%) | 1,595 (12.2%) | 1,034 (7.9%) | 100% |
| Louisa | 226 (37.0%) | 240 (39.3%) | 72 (11.8%) | 55 (9.0%) | 100% |
| Lucas | 308 (42.5%) | 229 (31.6%) | 92 (12.7%) | 73 (10.1%) | 100% |
| Lyon | 891 (49.0%) | 648 (35.6%) | 177 (9.7%) | 67 (3.7%) | 100% |
| Madison | 893 (41.4%) | 662 (30.7%) | 326 (15.1%) | 150 (7.0%) | 100% |
| Mahaska | 1,236 (43.1%) | 747 (26.1%) | 560 (19.5%) | 218 (7.6%) | 100% |
| Marion | 1,472 (37.6%) | 1,307 (33.4%) | 829 (21.2%) | 190 (4.8%) | 100% |
| Marshall | 949 (40.0%) | 903 (38.0%) | 352 (14.8%) | 86 (3.6%) | 100% |
| Mills | 502 (31.6%) | 737 (46.4%) | 150 (9.4%) | 153 (9.6%) | 100% |
| Mitchell | 317 (40.9%) | 297 (38.3%) | 76 (9.8%) | 63 (8.1%) | 100% |
| Monona | 318 (42.9%) | 305 (41.1%) | 47 (6.3%) | 54 (7.3%) | 100% |
| Monroe | 257 (41.1%) | 230 (36.8%) | 89 (14.2%) | 22 (3.5%) | 100% |
| Montgomery | 233 (30.1%) | 332 (42.8%) | 97 (12.5%) | 95 (12.3%) | 100% |
| Muscatine | 786 (33.8%) | 844 (36.3%) | 428 (18.4%) | 187 (8.0%) | 100% |
| Obrien | 714 (43.6%) | 584 (35.7%) | 183 (11.2%) | 128 (7.8%) | 100% |
| Osceola | 263 (33.5%) | 302 (38.5%) | 126 (16.1%) | 68 (8.7%) | 100% |
| Page | 425 (28.2%) | 614 (40.7%) | 269 (17.8%) | 148 (9.8%) | 100% |
| Palo Alto | 286 (33.1%) | 345 (39.9%) | 85 (9.8%) | 120 (13.9%) | 100% |
| Plymouth | 1,119 (44.7%) | 1,057 (42.2%) | 167 (6.7%) | 120 (4.8%) | 100% |
| Pocahontas | 247 (43.3%) | 235 (41.2%) | 57 (10.0%) | 24 (4.2%) | 100% |
| Polk | 10,512 (39.0%) | 7,926 (29.4%) | 5,670 (21.1%) | 876 (3.3%) | 100% |
| Pottawattamie | 1,344 (23.6%) | 3,085 (54.2%) | 454 (8.0%) | 554 (9.7%) | 100% |
| Poweshiek | 457 (40.6%) | 377 (33.5%) | 193 (17.1%) | 61 (5.4%) | 100% |
| Ringgold | 179 (31.4%) | 225 (39.5%) | 118 (20.7%) | 36 (6.3%) | 100% |
| Sac | 735 (41.6%) | 607 (34.4%) | 267 (15.1%) | 104 (5.9%) | 100% |
| Scott | 3,346 (36.1%) | 3,802 (41.0%) | 1,267 (13.7%) | 565 (6.1%) | 100% |
| Shelby | 405 (40.8%) | 382 (38.5%) | 130 (13.1%) | 51 (5.1%) | 100% |
| Sioux | 2,294 (40.0%) | 2,689 (46.9%) | 504 (8.8%) | 177 (3.1%) | 100% |
| Story | 2,058 (39.6%) | 1,901 (36.5%) | 749 (14.4%) | 231 (4.4%) | 100% |
| Tama | 595 (41.4%) | 423 (29.4%) | 291 (20.2%) | 66 (4.6%) | 100% |
| Taylor | 211 (38.2%) | 216 (39.1%) | 70 (12.7%) | 37 (6.7%) | 100% |
| Union | 315 (37.8%) | 292 (35.0%) | 125 (15.0%) | 69 (8.3%) | 100% |
| Van Buren | 189 (26.2%) | 200 (27.7%) | 266 (36.9%) | 43 (6.0%) | 100% |
| Wapello | 706 (36.3%) | 730 (37.6%) | 355 (18.3%) | 99 (5.1%) | 100% |
| Warren | 1,737 (37.2%) | 1,237 (26.5%) | 1,311 (28.1%) | 192 (4.1%) | 100% |
| Washington | 941 (46.2%) | 539 (26.4%) | 193 (9.5%) | 306 (15.0%) | 100% |
| Wayne | 228 (42.2%) | 166 (30.7%) | 106 (19.6%) | 28 (5.2%) | 100% |
| Webster | 703 (35.0%) | 946 (47.1%) | 255 (12.7%) | 62 (3.1%) | 100% |
| Winnebago | 185 (21.9%) | 310 (36.7%) | 168 (19.9%) | 165 (19.5%) | 100% |
| Winneshiek | 429 (33.2%) | 620 (48.0%) | 114 (8.8%) | 85 (6.6%) | 100% |
| Woodbury | 1,960 (35.7%) | 2,806 (51.0%) | 327 (6.0%) | 285 (5.2%) | 100% |
| Worth | 196 (25.3%) | 326 (42.1%) | 90 (11.6%) | 129 (16.7%) | 100% |
| Wright | 488 (43.0%) | 417 (36.7%) | 66 (5.8%) | 126 (11.1%) | 100% |
Campaign money · 2025–2026 cycle
| Candidate | Raised | Spent | Cash on hand |
|---|---|---|---|
| Zach Lahn | — | — | — |
| Randy Feenstra | $0 | $162 | $0 |
| Adam Steen | — | — | — |
| Brad Sherman | — | — | — |
| Eddie Andrews | $750 | $0 | $7,828 |
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.
Other races for this seat in 2026
- Governor · Democratic primary · June 2, 2026
- Governor · November 3, 2026
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.