Marathon leans heavily Republican by roughly 40 points: about 30% of voters vote Democratic and 70% Republican.
About 65% of adults in Marathon typically vote, near the U.S. average of about 62%. Among adults in Marathon, ~20% vote Democratic, ~45% Republican, and ~35% don't vote. The map below shows estimated turnout by block group.
How Marathon compares
Marathon runs about 25 points more Republican than Texas as a whole.
Why Marathon 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 Marathon, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 77% of households in Marathon are family households, about 11 points above the U.S. average of 67%. Rural areas vote Republican, and Marathon sits in the bottom quarter on density (fewer than 1%, in the bottom fraction of cities).
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; Marathon, TX sits in the bottom tenth nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in Marathon looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Marathon is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Alpine, TX R+7
- Casa Piedra, TX R+9
- Marfa, TX Even
- Ruidosa, TX R+4
- Sanderson, TX R+64
- Fort Davis, TX R+51
- Fort Stockton, TX R+25
- Girvin, TX R+32
- Terlingua, TX R+34
- Study Butte, TX R+34
Cities with Similar Populations
- Ravenscroft, TN R+68
- Mingoville, PA R+44
- Buena Vista, CA R+42
- Point Nipigon, MI R+30
- Kilbourne, IL R+57
- Lake Marian Highlands, FL R+67
- Cedar Hill, NY D+9
- Olney, OK R+73
- Greenway, AR R+67
- Milledgeville, TN R+75
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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.