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Iowa's 3rd Congressional District
The current officeholder, the 2024 result, and a precinct-level model you can run yourself — built from how Iowa actually voted.
Model Iowa's 3rd Congressional District →
Current officeholder
Zachary Nunn Republican
2024 result
Republican R+3.8
2024 votes cast
411,708
Office
U.S. House
Who lives in this district
This district is home to about 806,699 people, median age 37.3, median household income $79,204.
Population
806,699
Median age
37.3
Median household income
$79,204
Bachelor's degree or higher
36%
Race & ethnicity: White 79.1% · Black 5.3% · Hispanic 8.3% · Asian 3.8%
Source: U.S. Census Bureau, 2019–2023 American Community Survey (5-year).
Precinct results — 2024 general
373 precincts reported in Iowa's 3rd Congressional District's 2024 general election. The twenty largest:
| Precinct | Winner | Margin | Votes |
|---|---|---|---|
| 19153-ANKENY 22 | Republican | R+7.5 | 3,369 |
| 19049-Waukee 2 | Republican | R+0.8 | 2,671 |
| 19153-ANKENY 16 | Republican | R+8.6 | 2,624 |
| 19153-ALTOONA 6 | Republican | R+12.6 | 2,580 |
| 19049-WEST DES MOINES 322 WDM 322 | Republican | R+1.8 | 2,564 |
| 19153-DES MOINES 60 | Democratic | D+25.0 | 2,353 |
| 19153-GRIMES 2 | Republican | R+10.4 | 2,286 |
| 19153-DES MOINES 38 | Democratic | D+54.1 | 2,285 |
| 19153-DES MOINES 39 | Democratic | D+64.1 | 2,275 |
| 19049-Waukee 1 | Republican | R+3.3 | 2,272 |
| 19153-WEST DES MOINES 315 | Democratic | D+6.8 | 2,255 |
| 19153-ANKENY 5 | Republican | R+3.4 | 2,248 |
| 19049-URBANDALE 16 URB 16 | Republican | R+14.9 | 2,181 |
| 19153-JOHNSTON 6 | Democratic | D+1.3 | 2,159 |
| 19153-WEST DES MOINES 316 | Democratic | D+12.1 | 2,149 |
| 19153-ANKENY 17 | Republican | R+7.4 | 2,148 |
| 19153-DES MOINES 12 | Democratic | D+42.6 | 2,140 |
| 19049-WEST DES MOINES 224 WDM 224 | Democratic | D+5.1 | 2,131 |
| 19153-CLIVE 3 | Democratic | D+9.1 | 2,070 |
| 19153-DES MOINES 41 | Democratic | D+50.1 | 2,042 |
All 373 precincts are modelable — open the race in the simulator and drill to precinct grain.
Find your district
Enter a ZIP code or a district (e.g. NC-4) to find your U.S. House district and who represents it.
Model Iowa's 3rd Congressional District in five steps
- Set the candidates. Name the contenders for the Iowa's 3rd Congressional District (or keep the generic Democrat / Republican defaults). The map starts from the canonical mixed-grain 2024 presidential baseline.
- Apply a swing. Move vote share statewide, or by demographic cohort, with a slider. The map and the running tally recompute instantly.
- Model turnout. Mobilize or depress turnout for any group — turnout and persuasion are modeled separately, the way a real campaign thinks about them.
- Explore local geography. Zoom from the state through counties to the finest supported reporting grain and adjust the places available in the model.
- Roll up & share. Roll the result up to chamber control, then share the exact versioned scenario.
Open Iowa's 3rd Congressional District in the simulator →