Mercer County, MO
MO · Presidential Elections 1892–2024
Mercer County, MO (Missouri) voted R+73.1 for Donald Trump (Republican) in the 2024 presidential election, with Trump receiving 1,545 votes (86.22%) to 235 (13.11%) for Harris.
This represents a D+0.9% swing toward Democrats compared to 2020. Mercer County is classified as a deep Republican county. Mercer County has voted Republican in every presidential election since 2000. The county has a population of approximately 3,482.
Open in Cartographer
Interactive map with county profile in split-screen view
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 | 13.1%(235) | 86.2%(1,545) | R+73.1 | D+0.9 |
| 2020 | 12.5%(222) | 86.5%(1,541) | R+74.0 | R+1.2 |
| 2016 | 12.4%(216) | 85.2%(1,486) | R+72.8 | R+18.3 |
| 2012 | 21.3%(353) | 75.8%(1,255) | R+54.5 | R+17.3 |
| 2008 | 29.7%(519) | 66.9%(1,169) | R+37.2 | R+2.8 |
| 2004 | 32.0%(582) | 66.4%(1,207) | R+34.4 | D+3.3 |
| 2000 | 30.1%(555) | 67.9%(1,250) | R+37.7 | R+40.3 |
| 1996 | 44.3%(700) | 41.8%(660) | D+2.5 | R+9.2 |
| 1992 | 45.6%(843) | 33.9%(626) | D+11.7 | D+11.6 |
| 1988 | 50.0%(877) | 49.9%(875) | D+0.1 | D+16.9 |
Source: Official state election returns via MIT Election Data + Science Lab
Presidential Margin Trend
Mercer County, MO • 1892–2024
Senate Elections
Senate Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2024 | 15.4%(273) | 83.0%(1,475) | R+67.6 | R+2.0 |
| 2022 | 17.2%(213) | 82.8%(1,028) | R+65.7 | R+1.4 |
| 2018 | 16.3%(223) | 80.6%(1,102) | R+64.3 | R+15.2 |
| 2016 | 23.3%(396) | 72.4%(1,231) | R+49.1 | R+39.9 |
| 2012 | 40.9%(664) | 50.0%(813) | R+9.2 | D+41.4 |
| 2010 | 19.6%(241) | 70.2%(863) | R+50.6 | R+27.1 |
| 2006 | 35.3%(503) | 58.7%(837) | R+23.4 | D+26.4 |
| 2004 | 24.3%(425) | 74.1%(1,297) | R+49.8 | R+26.6 |
| 2002 | 37.6%(567) | 60.8%(916) | R+23.2 | D+3.7 |
| 2000 | 36.0%(653) | 62.8%(1,140) | R+26.8 | D+14.2 |
Source: Official state election returns via MIT Election Data + Science Lab
Governor Elections
Governor Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2024 | 12.8%(226) | 85.2%(1,498) | R+72.3 | D+3.0 |
| 2020 | 11.6%(204) | 86.9%(1,533) | R+75.3 | R+30.3 |
| 2016 | 26.6%(455) | 71.6%(1,224) | R+45.0 | R+9.3 |
| 2012 | 30.6%(503) | 66.3%(1,090) | R+35.7 | R+11.2 |
| 2008 | 35.8%(620) | 60.3%(1,043) | R+24.5 | D+16.0 |
| 2004 | 29.2%(519) | 69.7%(1,237) | R+40.5 | R+10.3 |
| 2000 | 34.0%(606) | 64.2%(1,144) | R+30.2 | R+60.3 |
| 1996 | 64.2%(972) | 34.1%(516) | D+30.1 | D+19.1 |
| 1992 | 55.5%(973) | 44.5%(780) | D+11.0 | D+44.5 |
| 1988 | 33.2%(574) | 66.7%(1,152) | R+33.4 | R+9.5 |
Source: Official state election returns via MIT Election Data + Science Lab