Sisterdale is a Republican stronghold. About 21% of voters here vote Democratic and 79% Republican.
About 81% of adults in Sisterdale typically vote, above the U.S. average of about 62%. Among adults in Sisterdale, ~17% vote Democratic, ~64% Republican, and ~19% don't vote. The map below shows estimated turnout by block group.
How Sisterdale compares
Among cities within 25 miles, Sisterdale leans more Republican than 17 of 24 neighbors.
Sisterdale runs about 44 points more Republican than Texas as a whole.
Politics vary noticeably by neighborhood within Sisterdale. The southeast side is the most Republican-leaning (R+62) and the southwest side is the least Republican-leaning (R+47), a spread of about 15 points.
Why Sisterdale 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 Sisterdale, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 80% of households in Sisterdale are family households, about 14 points above the U.S. average of 67%. Rural areas vote Republican, and Sisterdale sits in the bottom quarter on density (about 3%, below 89% of cities).
Developed land and Republican lean
Places with a rural land-use pattern tend to lean Republican; Sisterdale, TX sits in the bottom quarter nationally on this measure. Developed land does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Sisterdale looks the way it does
Homeowners vote more often than renters. About 94% of households in Sisterdale own their home, about 19 points above the Texas average of 75%. Limited routine healthcare access lines up with lower turnout, and Sisterdale sits in the bottom quarter on routine-care measures. High high-school completion lines up with higher turnout, and about 96% of adults in Sisterdale have completed high school, above 81% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Waring, TX R+57
- Van Raub, TX R+55
- Leon Springs, TX R+61
- Bergheim, TX R+56
- Comfort, TX R+43
- Kendalia, TX R+59
- Luckenbach, TX R+68
- Boerne, TX R+39
- Stonewall, TX R+63
- Blumenthal, TX R+60
Cities with Similar Populations
- New Richmond, IN R+61
- Green Valley, WV R+56
- Green Valley, WI R+50
- Evans, WA R+45
- Montrose, MO R+68
- Bruner, MO R+67
- Pearson, AR R+69
- Solis, TX R+11
- Fagus, MO R+65
- Stockholm, WI R+19
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.