Brazos County leans slightly Democratic by roughly 6 points: about 53% of voters vote Democratic and 47% Republican.
About 52% of adults in Brazos County typically vote, below the U.S. average of about 62%. Among adults in Brazos County, ~28% vote Democratic, ~24% Republican, and ~48% don't vote. The map below shows estimated turnout by block group.
How Brazos County compares
Among counties within 50 miles, Brazos County is the most Democratic-leaning.
Brazos County runs about 19 points more Democratic than Texas as a whole. Texas leans Republican overall, while Brazos County is one of the few Democratic-leaning pockets.
Politics vary noticeably by city within Brazos County. The south side runs the most Democratic (D+16) and the northeast side runs the most Republican (R+48), a spread of about 65 points.
Why Brazos 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 Brazos County, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 45% of adults in Brazos County hold a bachelor's degree, about 17 points above the U.S. average of 28%. Dense areas vote Democratic, and Brazos County sits in the top fifth on density (about 79%, above 95% of counties). A high never-married share predicts Democratic voting, and about 49% of adults in Brazos County have never been married, in the top fraction of counties.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; Brazos County, TX sits in the top tenth nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in Brazos County looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Brazos County is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Renters vote less often than owners, and about 54% of households in Brazos County rent, compared to around 26% in nearby counties. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Burleson County, TX R+53
- Grimes County, TX R+42
- Robertson County, TX R+35
- Washington County, TX R+37
- Madison County, TX R+43
- Milam County, TX R+51
- Lee County, TX R+52
- Walker County, TX R+20
- Waller County, TX R+20
- Leon County, TX R+69
Counties with Similar Populations
- Smith County, TX R+28
- Lake County, OH R+11
- Saratoga County, NY Even
- Oneida County, NY R+13
- Baldwin County, AL R+53
- Yavapai County, AZ R+22
- Canyon County, ID R+40
- Sussex County, DE R+12
- Linn County, IA D+7
- Berkeley County, SC R+13
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.