Del Rio leans slightly Republican by roughly 12 points: about 44% of voters vote Democratic and 56% Republican.
About 53% of adults in Del Rio typically vote, below the U.S. average of about 62%. Among adults in Del Rio, ~23% vote Democratic, ~29% Republican, and ~48% don't vote. The map below shows estimated turnout by block group.
How Del Rio compares
Del Rio sits in a sparsely populated area with few comparable cities nearby.
Politically, Del Rio sits close to the rest of Texas.
Politics vary noticeably by neighborhood within Del Rio. The northeast side is the most split-leaning (R+43) and the southeast side is the least split-leaning (R+3), a spread of about 40 points.
Why Del Rio 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 Del Rio, not a ranked or complete list of what matters most.
Del Rio votes Republican even though it is densely developed (about 70%, far above the Texas average of 35%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; Del Rio, 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 Del Rio looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Del Rio 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%. Renters vote less often than owners, and about 30% of households in Del Rio rent, above 84% of cities. Low high-school completion lines up with lower turnout, and about 76% of adults in Del Rio have completed high school, below 95% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Laughlin A F B, TX R+31
- Comstock, TX R+76
- Fort Clark Springs, TX R+43
- Brackettville, TX R+24
- Spofford, TX R+33
- Carta Valley, TX R+71
- Quemado, TX R+31
- Normandy, TX R+23
Cities with Similar Populations
- Casselberry, FL R+4
- Valley Village, CA D+44
- Brunswick, GA R+13
- Austell, GA D+58
- Nacogdoches, TX R+15
- Jamesburg, NJ R+4
- Attleboro, MA D+7
- Springfield, VA D+28
- Strongsville, OH R+6
- Lake Ridge, VA D+26
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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.