Simpson County leans heavily Republican by roughly 42 points: about 29% of voters vote Democratic and 71% Republican.
About 72% of adults in Simpson County typically vote, above the U.S. average of about 62%. Among adults in Simpson County, ~21% vote Democratic, ~51% Republican, and ~28% don't vote. The map below shows estimated turnout by block group.
How Simpson County compares
Among counties within 50 miles, Simpson County leans more Republican than 5 of 18 neighbors.
Simpson County runs about 12 points more Republican than Kentucky as a whole.
Politics vary noticeably by city within Simpson County. The northeast side is the most Republican-leaning (R+58) and the west side is the least Republican-leaning (R+31), a spread of about 27 points.
Why Simpson County leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Simpson County. The lean here lands roughly where demographic data alone would predict.
Park access and Republican lean
Places with low park coverage tend to lean Republican; Simpson County, KY sits in the bottom tenth nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in Simpson County looks the way it does
Turnout in Simpson County sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Warren County, KY R+16
- Logan County, KY R+56
- Allen County, KY R+64
- Robertson County, TN R+46
- Sumner County, TN R+40
- Macon County, TN R+68
- Trousdale County, TN R+59
- Todd County, KY R+59
- Butler County, KY R+67
- Edmonson County, KY R+67
Counties with Similar Populations
- Duchesne County, UT R+76
- Marion County, KY R+50
- Lincoln County, WY R+66
- Wayne County, KY R+65
- Elbert County, GA R+35
- East Feliciana Parish, LA R+24
- Gonzales County, TX R+41
- Holmes County, FL R+71
- Macon County, AL D+57
- Jones County, TX R+47
Sources and methodology
Precinct-level voting records used to fit the model come from Kentucky State Board of Elections, distributed by the Voting and Election Science Team. Demographic inputs come from the U.S. Census Bureau (ACS 5-year estimates and the 2020 Decennial Census). Health and environmental inputs come from the CDC (PLACES and the Environmental Justice Index). Land cover comes from the USGS and EPA. Election-day and lead-up weather come from PRISM 4km daily grids and the NOAA Global Historical Climatology Network. Mail-voting and election-administration patterns come from the MIT Election Lab's Survey of the Performance of American Elections. Block-group crime detail comes from CrimeGrade. Internet data and modeling support provided by ISPreports.org.
Modeling and analysis by the BestNeighborhood data science team. Full methodology and findings: political spectrum map.
Methodology reviewed by the BestNeighborhood data team. Last updated May 2026.