Del Rio leans heavily Republican by roughly 34 points: about 33% of voters vote Democratic and 67% Republican.
About 77% of adults in Del Rio typically vote, above the U.S. average of about 62%. Among adults in Del Rio, ~25% vote Democratic, ~52% Republican, and ~23% don't vote. The map below shows estimated turnout by block group.
How Del Rio compares
Among cities within 25 miles, Del Rio leans more Republican than 5 of 10 neighbors.
Del Rio runs about 28 points more Republican than Arizona as a whole.
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.
Areas with many family households vote Republican. About 76% of households in Del Rio are family households, about 10 points above the U.S. average of 67%.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Del Rio, AZ sits in the top tenth nationally 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 Del Rio looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Del Rio is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 72%, about 12 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 91% of households in Del Rio own their home, about 16 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and about 97% of adults in Del Rio have completed high school, above 92% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Chino Valley, AZ R+42
- Paulden, AZ R+52
- Williamson, AZ R+39
- Forbing Park, AZ R+22
- Prescott, AZ R+8
- Prescott Valley, AZ R+25
- Miller Valley, AZ R+21
- Skull Valley, AZ R+66
- Dewey, AZ R+33
Cities with Similar Populations
- Denver, TN R+65
- Buford, ND R+73
- High Bank, NY R+28
- Knightly, VA R+45
- Bridgeton, IN R+63
- Cane Valley, KY R+63
- Brandon, VA R+37
- Kapulena, HI D+23
- Rimrock, WA R+38
- Reynolds Heights, PA R+44
All Local Stats
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Sources and methodology
Precinct-level voting records used to fit the model come from Arizona Secretary of State, Elections, 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.