Hamilton County is a Republican stronghold. About 15% of voters here vote Democratic and 85% Republican.
About 85% of adults in Hamilton County typically vote, above the U.S. average of about 62%. Among adults in Hamilton County, ~13% vote Democratic, ~72% Republican, and ~15% don't vote. The map below shows estimated turnout by block group.
How Hamilton County compares
Among counties within 50 miles, Hamilton County leans more Republican than 6 of 7 neighbors.
Hamilton County runs about 56 points more Republican than Texas as a whole.
Politics vary noticeably by city within Hamilton County. The southwest side is the most Republican-leaning (R+76) and the northeast side is the least Republican-leaning (R+65), a spread of about 12 points.
Why Hamilton County leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Hamilton County. The lean here lands roughly where demographic data alone would predict.
Population density and Republican lean
Places with low population density tend to lean Republican; Hamilton County, TX sits below the national average on this measure.
Why turnout in Hamilton County looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Hamilton County is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Comanche County, TX R+65
- Bosque County, TX R+63
- Erath County, TX R+55
- Mills County, TX R+72
- Somervell County, TX R+67
- Coryell County, TX R+27
- Lampasas County, TX R+55
- Hood County, TX R+61
- Brown County, TX R+58
- Bell County, TX R+3
Counties with Similar Populations
- Oscoda County, MI R+44
- Lafayette County, FL R+65
- Dawes County, NE R+39
- Choctaw County, MS R+37
- Franklin City, VA D+32
- Murray County, MN R+54
- Hickory County, MO R+62
- Prairie County, AR R+64
- Houston County, TN R+64
- Lake County, OR R+61
Sources and methodology
Precinct-level voting records used to fit the model come from Texas Secretary of State, Elections Division, 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.