Seneca County, OH
OH · Presidential Elections 1892–2024
Seneca County, OH (Ohio) voted R+37.3 for Donald Trump (Republican) in the 2024 presidential election, with Trump receiving 17,241 votes (67.87%) to 7,765 (30.57%) for Harris.
This represents a R+3.1% swing toward Republicans compared to 2020. Seneca County is classified as a deep Republican county. Seneca County has voted Republican in every presidential election since 2000. The county has a population of approximately 54,770.
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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 | 30.6%(7,765) | 67.9%(17,241) | R+37.3 | R+3.1 |
| 2020 | 32.0%(8,266) | 66.2%(17,086) | R+34.2 | R+4.0 |
| 2016 | 30.1%(7,404) | 60.3%(14,825) | R+30.2 | R+22.8 |
| 2012 | 44.3%(11,353) | 51.7%(13,243) | R+7.4 | R+4.7 |
| 2008 | 47.5%(13,087) | 50.2%(13,823) | R+2.7 | D+15.6 |
| 2004 | 40.6%(10,957) | 58.9%(15,886) | R+18.3 | R+0.4 |
| 2000 | 39.1%(9,512) | 56.9%(13,863) | R+17.9 | R+19.3 |
| 1996 | 42.7%(10,044) | 41.3%(9,713) | D+1.4 | D+3.3 |
| 1992 | 35.5%(9,280) | 37.3%(9,763) | R+1.8 | D+16.1 |
| 1988 | 40.6%(9,504) | 58.5%(13,704) | R+17.9 | D+17.0 |
Source: Official state election returns via MIT Election Data + Science Lab
Presidential Margin Trend
Seneca County, OH • 1892–2024
Senate Elections
Senate Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2024 | 33.9%(8,509) | 61.5%(15,420) | R+27.5 | D+1.9 |
| 2022 | 35.2%(6,322) | 64.7%(11,618) | R+29.5 | R+23.1 |
| 2018 | 46.8%(8,741) | 53.2%(9,945) | R+6.4 | D+35.8 |
| 2016 | 26.2%(6,154) | 68.4%(16,097) | R+42.3 | R+33.2 |
| 2012 | 42.0%(10,525) | 51.1%(12,802) | R+9.1 | D+21.0 |
| 2010 | 32.4%(5,732) | 62.5%(11,069) | R+30.1 | R+37.1 |
| 2006 | 53.5%(10,742) | 46.5%(9,343) | D+7.0 | D+50.5 |
| 2004 | 28.2%(7,439) | 71.8%(18,913) | R+43.5 | R+4.4 |
| 2000 | 28.3%(6,732) | 67.4%(16,045) | R+39.1 | R+16.0 |
| 1998 | 38.4%(7,195) | 61.6%(11,525) | R+23.1 | D+0.2 |
Source: Official state election returns via MIT Election Data + Science Lab
Governor Elections
Governor Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2022 | 23.9%(4,319) | 75.7%(13,667) | R+51.8 | R+24.8 |
| 2018 | 34.4%(6,457) | 61.4%(11,521) | R+27.0 | D+16.1 |
| 2014 | 27.0%(3,722) | 70.1%(9,662) | R+43.1 | R+37.9 |
| 2010 | 44.1%(7,790) | 49.4%(8,716) | R+5.2 | R+22.1 |
| 2006 | 56.8%(11,387) | 40.0%(8,011) | D+16.8 | D+54.9 |
| 2002 | 28.8%(4,780) | 66.8%(11,101) | R+38.0 | R+24.3 |
| 1998 | 39.5%(7,156) | 53.3%(9,637) | R+13.7 | D+42.1 |
| 1994 | 20.2%(3,717) | 75.9%(13,994) | R+55.8 | R+35.9 |
| 1990 | 40.1%(7,537) | 59.9%(11,280) | R+19.9 | R+35.5 |
| 1986 | 57.8%(10,061) | 42.2%(7,339) | D+15.6 | D+13.2 |
Source: Official state election returns via MIT Election Data + Science Lab