Los Fresnos leans slightly Republican by roughly 12 points: about 44% of voters vote Democratic and 56% Republican.
About 48% of adults in Los Fresnos typically vote, below the U.S. average of about 62%. Among adults in Los Fresnos, ~21% vote Democratic, ~27% Republican, and ~52% don't vote. The map below shows estimated turnout by block group.
How Los Fresnos compares
Among cities within 25 miles, Los Fresnos leans more Republican than 19 of 30 neighbors.
Politically, Los Fresnos sits close to the rest of Texas.
Politics vary noticeably by neighborhood within Los Fresnos. The east side is the most Republican-leaning (R+33) and the northwest side is the least Republican-leaning (R+5), a spread of about 28 points.
Why Los Fresnos 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 Los Fresnos, not a ranked or complete list of what matters most.
Los Fresnos votes Republican even though it is densely developed (about 39%, above 84% of cities). State and regional patterns outweigh the Democratic lean that density usually predicts here. A high family-household share predicts Republican voting, and about 86% of households in Los Fresnos are family households, above 97% of cities.
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; Los Fresnos, TX sits in the bottom tenth nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Los Fresnos looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Los Fresnos 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%. Low high-school completion lines up with lower turnout, and about 74% of adults in Los Fresnos have completed high school, below 96% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Indian Lake, TX R+16
- Laureles, TX R+11
- Bayview, TX R+35
- Olmito, TX R+10
- Rancho Viejo, TX R+9
- Lozano, TX R+14
- Arroyo Gardens, TX R+16
- Villa Cavazos, TX R+11
- San Benito, TX R+3
- Brownsville, TX Even
Cities with Similar Populations
- Lindsay, CA R+5
- La Marque, TX D+11
- Gilmer, TX R+64
- Taft, CA R+40
- Glen Mills, PA D+4
- Gibsonton, FL D+4
- Dallas, NC R+32
- Anoka, MN D+5
- Alton, TX R+3
- Somerset, MA R+3
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.