75684 is a Republican stronghold. About 21% of voters here vote Democratic and 79% Republican.
About 59% of adults in 75684 typically vote, near the U.S. average of about 62%. Among adults in 75684, ~12% vote Democratic, ~47% Republican, and ~41% don't vote. The map below shows estimated turnout by block group.
How 75684 compares
Among zip codes within 15 miles, 75684 leans more Republican than 4 of 7 neighbors.
75684 runs about 45 points more Republican than Texas as a whole.
Politics vary noticeably by block within 75684. The southwest side is the most Republican-leaning (R+65) and the northeast side is the least Republican-leaning (R+51), a spread of about 14 points.
Why 75684 leans the way it does
This analysis examined 14,881 data points per zip code to find what predicts political lean and turnout. The items below are a few correlations that stood out for 75684, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 84% of residents in 75684 drive to work alone, about 10 points above the U.S. average of 74%. Low college attainment predicts Republican voting, and 75684 sits in the bottom quarter (about 16%, below 78% of zip codes).
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; 75684, TX sits in the bottom quarter 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 75684 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 75684 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Low high-school completion lines up with lower turnout, and about 85% of adults in 75684 have completed high school, below 82% of zip codes. Learn more about the findings and methodology on the political spectrum map.
Nearby Zip Codes
Zip Codes with Similar Populations
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.