Brown County leans heavily Republican by roughly 42 points: about 29% of voters vote Democratic and 71% Republican.
About 75% of adults in Brown County typically vote, above the U.S. average of about 62%. Among adults in Brown County, ~22% vote Democratic, ~53% Republican, and ~25% don't vote. The map below shows estimated turnout by block group.
How Brown County compares
Among counties within 50 miles, Brown County leans more Republican than 2 of 12 neighbors.
Brown County runs about 26 points more Republican than Kansas as a whole.
Politics vary noticeably by city within Brown County. The northwest side is the most Republican-leaning (R+62) and the southwest side is the least Republican-leaning (R+12), a spread of about 50 points.
Why Brown County leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Brown 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; Brown County, KS sits in the bottom quarter nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in Brown County looks the way it does
Areas with high high-school completion turn out at higher rates. About 95% of adults in Brown County have completed high school, above 89% of counties. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Richardson County, NE R+55
- Nemaha County, KS R+64
- Doniphan County, KS R+58
- Atchison County, KS R+34
- Holt County, MO R+61
- Jackson County, KS R+45
- Buchanan County, MO R+23
- Andrew County, MO R+50
- Pawnee County, NE R+61
- Jefferson County, KS R+50
Counties with Similar Populations
- McCormick County, SC R+5
- Yellow Medicine County, MN R+47
- Benewah County, ID R+60
- Iron County, MO R+60
- Brewster County, TX R+12
- Howard County, IA R+35
- Cheyenne County, NE R+58
- Greenlee County, AZ R+45
- Wilkes County, GA R+13
- Chattahoochee County, GA R+14
All Local Stats
Home Services
Sources and methodology
Precinct-level voting records used to fit the model come from Kansas Secretary of State, 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.