San Manuel-Linn leans slightly Republican by roughly 12 points: about 44% of voters vote Democratic and 56% Republican.
About 20% of adults in San Manuel-Linn typically vote, below the U.S. average of about 62%. Among adults in San Manuel-Linn, ~9% vote Democratic, ~11% Republican, and ~80% don't vote. The map below shows estimated turnout by block group.
How San Manuel-Linn compares
Among cities within 25 miles, San Manuel-Linn leans more Republican than 35 of 43 neighbors.
Politically, San Manuel-Linn sits close to the rest of Texas.
Politics vary noticeably by neighborhood within San Manuel-Linn. The northwest side is the most Republican-leaning (R+28) and the south side is the least Republican-leaning (R+11), a spread of about 17 points.
Why San Manuel-Linn 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 San Manuel-Linn, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 10% of adults in San Manuel-Linn hold a bachelor's degree, about 16 points below the Texas average of 26%. A high family-household share predicts Republican voting, and about 87% of households in San Manuel-Linn are family households, above 98% of cities.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; San Manuel-Linn, TX sits in the bottom 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 San Manuel-Linn looks the way it does
Areas with limited routine healthcare access turn out at lower rates. San Manuel-Linn 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 30%, about 24 points below the Texas average of 54%. Renters vote less often than owners, and about 29% of households in San Manuel-Linn rent, above 83% of cities. Low high-school completion lines up with lower turnout, and about 61% of adults in San Manuel-Linn have completed high school, in the bottom fraction of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- San Carlos, TX R+11
- Alton, TX R+3
- Penitas, TX R+7
- Palmview, TX R+3
- Mission, TX R+4
- Palmhurst, TX R+9
- La Joya, TX R+2
- Edinburg, TX Even
- Linn, TX R+28
Cities with Similar Populations
- Stacy, AR R+54
- Nickleville, PA R+57
- Garfield, WI R+14
- Floweree, MT R+55
- Goodnews Mining Camp, AK D+19
- Goodrich, ID R+69
- Ross, IA R+57
- Primrose, NE R+69
- Vona, CO R+71
- Clearwater Park, VA R+65
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.