Lavaca County is a Republican stronghold. About 18% of voters here vote Democratic and 82% Republican.
About 70% of adults in Lavaca County typically vote, above the U.S. average of about 62%. Among adults in Lavaca County, ~13% vote Democratic, ~57% Republican, and ~30% don't vote. The map below shows estimated turnout by block group.
How Lavaca County compares
Among counties within 50 miles, Lavaca County is the most Republican-leaning.
Lavaca County runs about 50 points more Republican than Texas as a whole.
Politics vary noticeably by city within Lavaca County. The southeast side is the most Republican-leaning (R+78) and the southwest side is the least Republican-leaning (R+30), a spread of about 48 points.
Why Lavaca County leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Lavaca County. The lean here lands roughly where demographic data alone would predict.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; Lavaca County, TX sits below the national average on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in Lavaca County looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Lavaca 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
- DeWitt County, TX R+49
- Gonzales County, TX R+41
- Fayette County, TX R+55
- Colorado County, TX R+42
- Victoria County, TX R+28
- Jackson County, TX R+62
- Caldwell County, TX R+17
- Goliad County, TX R+60
- Wharton County, TX R+33
- Bastrop County, TX R+24
Counties with Similar Populations
- Clay County, KY R+72
- Buchanan County, VA R+67
- Carroll County, IN R+53
- Lincoln County, NM R+28
- Yell County, AR R+59
- Carbon County, UT R+56
- Bourbon County, KY R+37
- Breckinridge County, KY R+58
- Uinta County, WY R+62
- Greene County, NC R+15
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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.