Iowa's 3rd congressional district: election results
U.S. House elections in Iowa's 3rd congressional district, 1976 to 2024: winners, vote shares and margins. District lines are redrawn after each census, so the area covered changes over time.
Current representative: Zachary Nunn (Republican), term ends 2027-01-03.
| Year | Winner | Party | Share | Margin |
|---|---|---|---|---|
| 2024 | Zach Nunn | Republican | 51.8% | 3.7 |
| 2022 | Zach Nunn | Republican | 50.3% | 0.7 |
| 2020 | Cindy Axne | Democratic | 48.9% | 1.4 |
| 2018 | Cindy Axne | Democratic | 49.3% | 2.2 |
| 2016 | David Young | Republican | 53.4% | 13.7 |
| 2014 | David Young | Republican | 52.8% | 10.5 |
| 2012 | Tom Latham | Republican | 52.2% | 8.6 |
| 2010 | Leonard L. Boswell | Democratic | 50.7% | 4.3 |
| 2008 | Leonard L. Boswell | Democratic | 56.4% | 14.3 |
| 2006 | Leonard L. Boswell | Democratic | 51.9% | 5.4 |
| 2004 | Leonard L. Boswell | Democratic | 55.2% | 10.5 |
| 2002 | Leonard L. Boswell | Democratic | 53.4% | 8.4 |
| 2000 | Leonard L. Boswell | Democratic | 62.8% | 29.1 |
| 1998 | Leonard L. Boswell | Democratic | 56.9% | 15.8 |
| 1980 | Thomas Cooper Evans | Republican | 51.4% | 2.9 |
| 1978 | Chuck Grassley | Republican | 74.8% | 49.7 |
| 1976 | Chuck Grassley | Republican | 56.5% | 12.9 |
2024
| Candidate | Party | Votes | Share | Bar |
|---|---|---|---|---|
| Zach Nunn Won | REP | 213,746 | 51.77% | |
| Lanon Baccam | DEM | 197,962 | 47.94% | |
| Undervote | — | 13,498 | 3.27% | |
| Write-in | — | 1,197 | 0.29% | |
| Overvote | — | 143 | 0.04% | |
| Total | 426,546 | |||
2022
| Candidate | Party | Votes | Share | Bar |
|---|---|---|---|---|
| Zach Nunn Won | REP | 156,262 | 50.26% | |
| Cindy Axne | DEM | 154,117 | 49.57% | |
| Undervote | — | 4,024 | 1.29% | |
| Write-in | — | 534 | 0.17% | |
| Overvote | — | 102 | 0.03% | |
| Total | 315,039 | |||
2020
| Candidate | Party | Votes | Share | Bar |
|---|---|---|---|---|
| Cindy Axne Won | DEM | 219,205 | 48.94% | |
| David Young | REP | 212,997 | 47.55% | |
| Bryan Jack Holder | LIB | 15,361 | 3.43% | |
| Undervote | — | 12,648 | 2.82% | |
| Write-in | — | 384 | 0.09% | |
| Overvote | — | 218 | 0.05% | |
| Total | 460,813 | |||
Questions and answers
Who represents Iowa's 3rd congressional district?
Zachary Nunn (Republican) is the current representative; the term ends on 2027-01-03.
Who won the last election in Iowa's 3rd congressional district?
Zach Nunn won in 2024 by 3.7 points.
Results: FiveThirtyEight, from official sources.