Brazoria is a Republican stronghold. About 24% of voters here vote Democratic and 76% Republican.
About 60% of adults in Brazoria typically vote, near the U.S. average of about 62%. Among adults in Brazoria, ~14% vote Democratic, ~46% Republican, and ~40% don't vote. The map below shows estimated turnout by block group.
How Brazoria compares
Among cities within 25 miles, Brazoria leans more Republican than 20 of 34 neighbors.
Brazoria runs about 38 points more Republican than Texas as a whole.
Politics vary noticeably by neighborhood within Brazoria. The southwest side is the most Republican-leaning (R+61) and the southeast side is the least Republican-leaning (R+42), a spread of about 20 points.
Why Brazoria leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Brazoria, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 86% of residents in Brazoria drive to work alone, about 12 points above the U.S. average of 74%.
High-school completion, developed land, and voter turnout
Places that combine low high-school-completion share and a heavily developed built environment tend to turn out at a lower rate, as Brazoria, TX does.
Why turnout in Brazoria looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Brazoria 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 49%, about 11 points below the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Old Brazoria, TX R+60
- Jones Creek, TX R+56
- Wild Peach Village, TX R+57
- Perry Landing, TX R+39
- Cedar Lake, TX R+59
- Sweeny, TX R+52
- Lake Jackson, TX R+36
- Cedar Lane, TX R+50
- West Columbia, TX R+49
Cities with Similar Populations
- La Feria, TX R+4
- Centerville, MA D+11
- Keokuk, IA R+19
- Lincoln City, OR D+17
- Littlestown, PA R+44
- Shallotte, NC R+40
- Lyons, IL D+14
- Saddlebrooke, AZ R+8
- Independence, OR R+8
- Tallassee, AL R+52
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.