Frio County leans slightly Republican by roughly 12 points: about 44% of voters vote Democratic and 56% Republican.
About 47% of adults in Frio County typically vote, below the U.S. average of about 62%. Among adults in Frio County, ~21% vote Democratic, ~26% Republican, and ~53% don't vote. The map below shows estimated turnout by block group.
How Frio County compares
Among counties within 50 miles, Frio County leans more Republican than 2 of 7 neighbors.
Politically, Frio County sits close to the rest of Texas.
Politics vary noticeably by city within Frio County. The northeast side is the most Republican-leaning (R+45) and the west side is the least Republican-leaning (R+4), a spread of about 41 points.
Why Frio 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 Frio County, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 13% of adults in Frio County hold a bachelor's degree, about 12 points below the Texas average of 26%. A high family-household share predicts Republican voting, and about 75% of households in Frio County are family households, above 94% of counties.
Park access and Republican lean
Places with low park coverage tend to lean Republican; Frio County, TX sits in the bottom quarter nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in Frio County looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Frio 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 44%, about 10 points below the Texas average of 54%. Renters vote less often than owners, and about 32% of households in Frio County rent, above 80% of counties. Low high-school completion lines up with lower turnout, and about 74% of adults in Frio County have completed high school, below 98% of counties. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Medina County, TX R+37
- La Salle County, TX R+13
- Atascosa County, TX R+37
- Zavala County, TX D+4
- McMullen County, TX R+59
- Uvalde County, TX R+23
- Dimmit County, TX R+4
- Bexar County, TX D+14
- Bandera County, TX R+59
- Wilson County, TX R+50
Counties with Similar Populations
- Dickinson County, KS R+51
- Jefferson County, KS R+50
- Covington County, MS R+32
- Stone County, MS R+57
- Appling County, GA R+53
- Yancey County, NC R+43
- Westmoreland County, VA R+14
- Ste. Genevieve County, MO R+55
- Fentress County, TN R+68
- Lamar County, GA R+36
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.