Johnson County is a Republican stronghold. About 25% of voters here vote Democratic and 75% Republican.
About 65% of adults in Johnson County typically vote, near the U.S. average of about 62%. Among adults in Johnson County, ~16% vote Democratic, ~49% Republican, and ~35% don't vote. The map below shows estimated turnout by block group.
How Johnson County compares
Among counties within 50 miles, Johnson County leans more Republican than 4 of 9 neighbors.
Johnson County runs about 37 points more Republican than Texas as a whole.
Politics vary noticeably by city within Johnson County. The southeast side is the most Republican-leaning (R+72) and the northeast side is the least Republican-leaning (R+42), a spread of about 30 points.
Why Johnson County leans the way it does
This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Johnson County, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 84% of residents in Johnson County drive to work alone, about 10 points above the U.S. average of 74%. A high family-household share predicts Republican voting, and about 78% of households in Johnson County are family households, above 98% of counties.
Non-English at home and voter turnout
Places with a low non-English-at-home share tend to turn out at a higher rate; Johnson County, TX sits in the bottom quarter nationally on this measure.
Why turnout in Johnson County looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Johnson County 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 Counties
- Tarrant County, TX D+3
- Hood County, TX R+61
- Somervell County, TX R+67
- Ellis County, TX R+31
- Hill County, TX R+58
- Parker County, TX R+62
- Dallas County, TX D+27
- Bosque County, TX R+63
- Denton County, TX R+7
- Wise County, TX R+69
Counties with Similar Populations
- Vanderburgh County, IN R+9
- Imperial County, CA Even
- Washington County, UT R+51
- Kanawha County, WV R+19
- Shawnee County, KS D+4
- Licking County, OH R+29
- Peoria County, IL D+14
- Ulster County, NY D+16
- Kent County, DE D+5
- Shasta County, CA R+30
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.