Boone County leans Republican by roughly 28 points: about 36% of voters vote Democratic and 64% Republican.
About 79% of adults in Boone County typically vote, above the U.S. average of about 62%. Among adults in Boone County, ~28% vote Democratic, ~51% Republican, and ~21% don't vote. The map below shows estimated turnout by block group.
How Boone County compares
Among counties within 50 miles, Boone County leans more Republican than 4 of 25 neighbors.
Politically, Boone County sits close to the rest of Kentucky.
Politics vary noticeably by city within Boone County. The southwest side is the most Republican-leaning (R+52) and the northeast side is the least Republican-leaning (R+12), a spread of about 40 points.
Why Boone County leans the way it does
This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Boone County, not a ranked or complete list of what matters most.
Boone County votes Republican even though it is densely developed (about 71%, far above the Kentucky average of 18%). State and regional patterns outweigh the Democratic lean that density usually predicts here. A high family-household share predicts Republican voting, and about 73% of households in Boone County are family households, above 92% of counties.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Boone County, KY sits in the top quarter nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Boone County looks the way it does
Turnout in Boone 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
- Kenton County, KY R+14
- Ohio County, IN R+58
- Campbell County, KY R+16
- Hamilton County, OH D+21
- Dearborn County, IN R+53
- Gallatin County, KY R+57
- Grant County, KY R+62
- Switzerland County, IN R+63
- Pendleton County, KY R+62
- Clermont County, OH R+37
Counties with Similar Populations
- Clark County, OH R+21
- Grayson County, TX R+43
- Humboldt County, CA D+27
- Blount County, TN R+49
- Brunswick County, NC R+29
- Washington County, WI R+28
- Florence County, SC Even
- Hampton City, VA D+41
- Warren County, KY R+16
- Calhoun County, MI R+9
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.