Black Hawk County, Iowa: Razor-Thin Margins
Iowa · Presidential Elections 1892–2024
D+1.2
2024 Margin
R+7.9%
2020→2024 Swing
D since 1988
Voting Streak
131K
Population
Black Hawk County, Iowa voted D+1.2 for Kamala Harris in 2024, with Harris receiving 31,299 votes (49.76%). This represented a R+7.9% swing toward Republicans compared to 2020. The county has voted Democratic in every presidential election since 1988.
Quick Stats
2024 ResultD+1.2
2020→2024 SwingR+7.9%
Voting StreakD since 1988
Elections on Record34
Demographics
Population131,144
Median Age
35.5(US: 38.4)
College (BA+)
30.1%(US: 34.6%)
Median Income
$62,329(US: $78k)
White (non-Hisp)
78.8%(US: 57.5%)
Hispanic
5.0%(US: 18.6%)
Black
10.4%(US: 12.3%)
Asian
2.6%(US: 5.7%)
Homeownership
65.3%(US: 64.2%)
Poverty Rate
14.7%(US: 12.4%)
Veterans
5.8%(US: 6.4%)
Non-English (CVAP)
5.1%(US: 17.1%)
Community Profile
Presidential Elections
Presidential Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2024 | 49.8%(31,299) | 48.6%(30,572) | D+1.2 | R+7.9 |
| 2020 | 53.5%(35,647) | 44.5%(29,640) | D+9.0 | D+1.7 |
| 2016 | 49.6%(32,233) | 42.3%(27,476) | D+7.3 | R+12.9 |
| 2012 | 59.3%(39,821) | 39.1%(26,235) | D+20.2 | R+2.2 |
| 2008 | 60.5%(39,184) | 38.1%(24,662) | D+22.4 | D+10.9 |
| 2004 | 55.4%(35,392) | 43.9%(28,046) | D+11.5 | R+0.6 |
| 2000 | 54.7%(30,112) | 42.6%(23,468) | D+12.1 | R+7.4 |
| 1996 | 55.8%(29,651) | 36.4%(19,322) | D+19.4 | D+6.1 |
| 1992 | 48.1%(29,584) | 34.8%(21,398) | D+13.3 | R+0.1 |
| 1988 | 56.4%(31,657) | 42.9%(24,112) | D+13.4 | D+14.7 |
Source: Official state election returns via MIT Election Data + Science Lab
Senate Elections
Senate Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2022 | 50.6%(24,036) | 48.7%(23,133) | D+1.9 | R+6.8 |
| 2020 | 53.0%(34,963) | 44.3%(29,222) | D+8.7 | D+19.1 |
| 2016 | 42.9%(27,245) | 53.3%(33,884) | R+10.4 | R+17.5 |
| 2014 | 52.0%(24,311) | 44.9%(21,007) | D+7.1 | D+29.3 |
| 2010 | 38.0%(17,114) | 60.2%(27,099) | R+22.2 | R+58.2 |
| 2008 | 68.0%(42,681) | 31.9%(20,043) | D+36.1 | D+73.5 |
| 2004 | 30.4%(19,151) | 67.8%(42,746) | R+37.4 | R+56.3 |
| 2002 | 58.4%(24,302) | 39.6%(16,475) | D+18.8 | D+50.3 |
| 1998 | 33.9%(13,365) | 65.4%(25,792) | R+31.5 | R+49.6 |
| 1996 | 58.5%(30,770) | 40.5%(21,283) | D+18.1 | D+55.5 |
Source: Official state election returns via MIT Election Data + Science Lab
Governor Elections
Governor Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2022 | 45.8%(21,585) | 51.4%(24,236) | R+5.6 | R+17.8 |
| 2018 | 54.9%(29,259) | 42.8%(22,786) | D+12.2 | D+16.7 |
| 2014 | 46.2%(21,506) | 50.8%(23,633) | R+4.6 | R+7.6 |
| 2010 | 50.1%(22,720) | 47.1%(21,355) | D+3.0 | R+15.7 |
| 2006 | 58.7%(26,080) | 40.0%(17,758) | D+18.7 | D+3.2 |
| 2002 | 56.4%(23,501) | 40.9%(17,038) | D+15.5 | R+1.4 |
| 1998 | 57.9%(22,861) | 40.9%(16,164) | D+16.9 | D+25.9 |
| 1994 | 44.9%(19,752) | 53.9%(23,714) | R+9.0 | D+11.1 |
| 1990 | 39.7%(17,018) | 59.9%(25,640) | R+20.1 | R+27.5 |
| 1986 | 53.7%(23,150) | 46.3%(19,975) | D+7.4 | D+14.7 |
Source: Official state election returns via MIT Election Data + Science Lab
Primary Election History
Primary Results
| Year | Party | Winner | Runner-up | Nominee? |
|---|---|---|---|---|
| 2024 | GOP | Donald Trump(52.2%) | Other(25.8%) | ✓ |
| 2020 | Dem | Bernie Sanders(27.4%) | Pete Buttigieg(20.2%) | ✗ |
| 2016 | Dem | Bernie Sanders(52.9%) | Hillary Clinton(46.7%) | ✗ |
| 2008 | Dem | Barack Obama(42.6%) | Hillary Clinton(27.9%) | ✓ |
✓ = County picked eventual party nominee