Shenandoah leans Republican by roughly 26 points: about 37% of voters vote Democratic and 63% Republican.
About 79% of adults in Shenandoah typically vote, above the U.S. average of about 62%. Among adults in Shenandoah, ~29% vote Democratic, ~50% Republican, and ~21% don't vote. The map below shows estimated turnout by block group.
How Shenandoah compares
Among cities within 25 miles, Shenandoah leans more Republican than 7 of 34 neighbors.
Shenandoah runs about 12 points more Republican than Texas as a whole.
Politics vary noticeably by neighborhood within Shenandoah. The southeast side runs the most Democratic (D+24) and the northwest side runs the most Republican (R+30), a spread of about 54 points.
Why Shenandoah 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 Shenandoah, not a ranked or complete list of what matters most.
Shenandoah votes Republican even though it is densely developed (about 82%, far above the Texas average of 35%). Here an older population outweighs the Democratic lean that density usually predicts.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Shenandoah, TX sits above the national average 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 Shenandoah looks the way it does
Areas with high high-school completion turn out at higher rates. About 96% of adults in Shenandoah have completed high school, about 11 points above the Texas average of 86%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Oak Ridge North, TX R+37
- The Woodlands, TX R+24
- Conroe, TX R+29
- Spring, TX R+12
- Wigginsville, TX R+62
- Magnolia, TX R+50
- Tomball, TX R+27
- Pinehurst, TX R+49
- Cut and Shoot, TX R+55
- Porter, TX R+30
Cities with Similar Populations
- Peralta, NM R+17
- Dittmer, MO R+55
- Kaunakakai, HI D+17
- San Quentin, CA D+41
- Whitehall, NY R+40
- Constantine, MI R+42
- South Russell, OH Even
- Joppa, MD R+23
- Morley, MI R+47
- Nash, TX R+12
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.