Alton is a true toss-up. About 48% of voters here vote Democratic and 52% Republican.
About 37% of adults in Alton typically vote, below the U.S. average of about 62%. Among adults in Alton, ~18% vote Democratic, ~19% Republican, and ~63% don't vote. The map below shows estimated turnout by block group.
How Alton compares
Among cities within 25 miles, Alton leans more Republican than 16 of 44 neighbors.
Alton runs about 10 points more Democratic than Texas as a whole.
Why Alton leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Alton. The lean here lands roughly where demographic data alone would predict.
High-school completion, developed land, and voter turnout
Places that combine low high-school-completion share and a heavily developed built environment tend to turn out at a lower rate, as Alton, TX does.
Why turnout in Alton looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Alton 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 38%, about 16 points below the Texas average of 54%. Renters vote less often than owners, and about 39% of households in Alton rent, above 94% of cities. Low high-school completion lines up with lower turnout, and about 65% of adults in Alton have completed high school, in the bottom fraction of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Palmhurst, TX R+9
- Mission, TX R+4
- Palmview, TX R+3
- McAllen, TX R+2
- Palmview South, TX R+5
- Madero, TX R+16
- Edinburg, TX Even
- Penitas, TX R+7
- Abram, TX R+6
- San Carlos, TX R+11
Cities with Similar Populations
- Gibsonton, FL D+4
- Glen Mills, PA D+4
- Emmaus, PA R+6
- Taft, CA R+40
- La Marque, TX D+11
- Eastlake, OH R+14
- Ferguson, MO D+69
- Los Fresnos, TX R+12
- Lindsay, CA R+5
- Purcellville, VA Even
All Local Stats
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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.