King County is a Republican stronghold. About 7% of voters here vote Democratic and 93% Republican.
About 63% of adults in King County typically vote, near the U.S. average of about 62%. Among adults in King County, ~4% vote Democratic, ~59% Republican, and ~37% don't vote. The map below shows estimated turnout by block group.
How King County compares
Among counties within 50 miles, King County is the most Republican-leaning.
King County runs about 72 points more Republican than Texas as a whole.
Why King 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 King County, not a ranked or complete list of what matters most.
Rural areas vote Republican. Fewer than 1% of residents in King County live in densely developed areas, about 34 points below the Texas average of 35%. A high family-household share predicts Republican voting, and about 88% of households in King County are family households, in the top fraction of counties.
Population density and Republican lean
Places with low population density tend to lean Republican; King County, TX sits in the bottom tenth nationally on this measure.
Why turnout in King County looks the way it does
Limited routine healthcare access lines up with lower turnout, and King County sits in the bottom quarter on routine-care measures. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Cottle County, TX R+57
- Dickens County, TX R+72
- Kent County, TX R+79
- Stonewall County, TX R+68
- Knox County, TX R+66
- Motley County, TX R+75
- Foard County, TX R+69
- Haskell County, TX R+65
- Childress County, TX R+57
- Hardeman County, TX R+60
Counties with Similar Populations
- Kenedy County, TX R+44
All Local Stats
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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.