Rio Bravo leans slightly Republican by roughly 6 points: about 47% of voters vote Democratic and 53% Republican.
About 39% of adults in Rio Bravo typically vote, below the U.S. average of about 62%. Among adults in Rio Bravo, ~18% vote Democratic, ~21% Republican, and ~61% don't vote. The map below shows estimated turnout by block group.
How Rio Bravo compares
Among cities within 25 miles, Rio Bravo leans more Republican than 2 of 5 neighbors.
Rio Bravo runs about 8 points more Democratic than Texas as a whole.
Politics vary noticeably by neighborhood within Rio Bravo. The east side is the most Republican-leaning (R+25) and the southwest side is the least Republican-leaning (R+5), a spread of about 20 points.
Why Rio Bravo 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 Rio Bravo, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 5% of adults in Rio Bravo hold a bachelor's degree, about 20 points below the Texas average of 26%. Car-dependent areas vote Republican, and about 86% of residents in Rio Bravo drive to work alone, above 84% of cities. A high family-household share predicts Republican voting, and about 76% of households in Rio Bravo are family households, above 78% of cities.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; Rio Bravo, TX sits in the bottom quarter nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Rio Bravo looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Rio Bravo 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 32%, about 22 points below the Texas average of 54%. Low high-school completion lines up with lower turnout, and about 45% of adults in Rio Bravo have completed high school, in the bottom fraction of cities. High-crime urban areas turn out at lower rates, and Rio Bravo sits in the top 15% on a violent-crime measure. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- El Cenizo, TX R+3
- Laredo, TX Even
- Pueblo Nuevo, TX R+12
- Ranchos Penitas West, TX R+18
- San Ygnacio, TX R+8
- Mirando City, TX R+34
- Oilton, TX R+27
- Zapata, TX R+7
- Bruni, TX R+19
- Bustamante, TX R+5
Cities with Similar Populations
- Maysville, NC R+32
- Hardin, MT R+18
- Eubank, KY R+71
- Woodbridge, CA R+23
- Clearwater, MN R+42
- Watertown, TN R+65
- Carmichaels, PA R+42
- Flower Hill, NY D+3
- West Pleasant View, CO D+19
- Albia, IA R+40
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.