Union County, SD
SD · Presidential Elections 1892–2024
Union County, SD (South Dakota) voted R+40.7 for Donald Trump (Republican) in the 2024 presidential election, with Trump receiving 6,160 votes (69.4%) to 2,548 (28.71%) for Harris.
This represents a R+4.3% swing toward Republicans compared to 2020. Union County is classified as a deep Republican county. Union County has voted Republican in every presidential election since 2000. The county has a population of approximately 17,081.
Quick Stats
Demographics
Community Profile
Religious Composition
Source: Religion Census 2020Ancestry Groups
Source: Census ACSTop reported ancestry groups (compared to national average).
Age Distribution
Employment by Industry
Census ACSPresidential Elections
Presidential Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2024 | 28.7%(2,548) | 69.4%(6,160) | R+40.7 | R+4.3 |
| 2020 | 30.8%(2,725) | 67.1%(5,944) | R+36.4 | D+2.4 |
| 2016 | 28.2%(2,227) | 67.0%(5,290) | R+38.8 | R+13.6 |
| 2012 | 36.6%(2,782) | 61.9%(4,698) | R+25.2 | R+11.4 |
| 2008 | 42.1%(3,244) | 56.0%(4,310) | R+13.8 | D+0.2 |
| 2004 | 42.6%(3,000) | 56.6%(3,987) | R+14.0 | D+1.7 |
| 2000 | 40.9%(2,358) | 56.6%(3,265) | R+15.7 | R+18.5 |
| 1996 | 45.7%(2,378) | 42.9%(2,234) | D+2.8 | R+5.6 |
| 1992 | 43.4%(2,210) | 35.0%(1,784) | D+8.4 | R+7.1 |
| 1988 | 57.4%(2,612) | 41.9%(1,907) | D+15.5 | D+20.0 |
Source: Official state election returns via MIT Election Data + Science Lab
Presidential Margin Trend
Union County, SD • 1892–2024
Senate Elections
Senate Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2022 | 22.3%(1,497) | 74.3%(4,991) | R+52.0 | R+6.9 |
| 2020 | 27.4%(2,407) | 72.6%(6,364) | R+45.1 | D+9.2 |
| 2016 | 22.8%(1,793) | 77.2%(6,060) | R+54.3 | R+17.7 |
| 2014 | 24.7%(1,268) | 61.3%(3,150) | R+36.6 | D+63.4 |
| 2010 | 0.0%(0) | 100.0%(4,522) | R+100.0 | R+112.5 |
| 2008 | 56.3%(4,293) | 43.7%(3,337) | D+12.5 | D+17.6 |
| 2004 | 47.5%(3,351) | 52.5%(3,706) | R+5.0 | R+1.3 |
| 2002 | 47.7%(2,518) | 51.4%(2,715) | R+3.7 | R+32.8 |
| 1998 | 63.7%(2,676) | 34.6%(1,454) | D+29.1 | D+21.5 |
| 1996 | 53.8%(2,772) | 46.2%(2,381) | D+7.6 | R+34.6 |
Source: Official state election returns via MIT Election Data + Science Lab
Governor Elections
Governor Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2022 | 27.4%(1,848) | 70.1%(4,723) | R+42.7 | R+19.9 |
| 2018 | 38.1%(2,544) | 60.9%(4,068) | R+22.8 | D+29.4 |
| 2014 | 21.4%(1,092) | 73.6%(3,754) | R+52.2 | R+22.5 |
| 2010 | 35.2%(2,102) | 64.8%(3,874) | R+29.7 | D+0.7 |
| 2006 | 33.8%(1,915) | 64.2%(3,633) | R+30.3 | R+22.0 |
| 2002 | 44.9%(2,358) | 53.2%(2,795) | R+8.3 | D+21.7 |
| 1998 | 33.5%(1,408) | 63.5%(2,671) | R+30.0 | R+27.1 |
| 1994 | 45.6%(2,224) | 48.5%(2,368) | R+3.0 | D+7.9 |
| 1990 | 44.6%(1,553) | 55.4%(1,932) | R+10.9 | R+29.6 |
| 1986 | 59.4%(2,537) | 40.6%(1,737) | D+18.7 | D+33.3 |
Source: Official state election returns via MIT Election Data + Science Lab