Anderson County leans heavily Republican by roughly 42 points: about 29% of voters vote Democratic and 71% Republican.
About 56% of adults in Anderson County typically vote, below the U.S. average of about 62%. Among adults in Anderson County, ~16% vote Democratic, ~40% Republican, and ~44% don't vote. The map below shows estimated turnout by block group.
How Anderson County compares
Among counties within 50 miles, Anderson County leans more Republican than 2 of 6 neighbors.
Anderson County runs about 27 points more Republican than Texas as a whole.
Politics vary noticeably by city within Anderson County. The northwest side is the most Republican-leaning (R+77) and the west side is the least Republican-leaning (R+17), a spread of about 61 points.
Why Anderson 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 Anderson County, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 83% of residents in Anderson County drive to work alone, about 9 points above the U.S. average of 74%. Low college attainment predicts Republican voting, and Anderson County sits in the bottom quarter (about 15%, below 85% of counties). A high family-household share predicts Republican voting, and about 70% of households in Anderson County are family households, above 81% of counties.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; Anderson County, TX sits in the bottom 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 Anderson County looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Anderson County is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 48%, about 6 points below the Texas average of 54%. Renters vote less often than owners, and about 33% of households in Anderson County rent, above 82% of counties. Low high-school completion lines up with lower turnout, and about 85% of adults in Anderson County have completed high school, below 81% of counties. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Cherokee County, TX R+47
- Freestone County, TX R+56
- Henderson County, TX R+60
- Houston County, TX R+41
- Leon County, TX R+69
- Smith County, TX R+28
- Limestone County, TX R+40
- Navarro County, TX R+34
- Van Zandt County, TX R+72
- Madison County, TX R+43
Counties with Similar Populations
- Coffee County, TN R+55
- Maverick County, TX R+8
- Oxford County, ME R+25
- Windsor County, VT D+17
- Jefferson County, WV R+22
- Box Elder County, UT R+56
- Lawrence County, OH R+50
- Acadia Parish, LA R+54
- Gordon County, GA R+60
- Genesee County, NY R+29
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.