Culberson County leans Republican by roughly 18 points: about 41% of voters vote Democratic and 59% Republican.
About 50% of adults in Culberson County typically vote, below the U.S. average of about 62%. Among adults in Culberson County, ~21% vote Democratic, ~30% Republican, and ~49% don't vote. The map below shows estimated turnout by block group.
How Culberson County compares
Culberson County runs about 5 points more Republican than Texas as a whole.
Why Culberson 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 Culberson County, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 2% of residents in Culberson County live in densely developed areas, about 33 points below the Texas average of 35%. Low college attainment predicts Republican voting, and Culberson County sits in the bottom quarter (about 15%, below 86% of counties).
Population density and Republican lean
Places with low population density tend to lean Republican; Culberson County, TX sits in the bottom tenth nationally on this measure.
Why turnout in Culberson County looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Culberson County is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 44%, about 10 points below the Texas average of 54%. Low high-school completion lines up with lower turnout, and about 73% of adults in Culberson County have completed high school, in the bottom fraction of counties. High-crime urban areas turn out at lower rates, and Culberson County sits in the top 15% on a violent-crime measure. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Hudspeth County, TX R+45
- Jeff Davis County, TX R+51
- Reeves County, TX R+33
- Presidio County, TX D+4
- Brewster County, TX R+12
- El Paso County, TX D+15
- Eddy County, NM R+49
- Winkler County, TX R+59
- Ward County, TX R+56
Counties with Similar Populations
- Greeley County, NE R+68
- Robertson County, KY R+61
- Divide County, ND R+59
- Adams County, ND R+62
- Burke County, ND R+76
- Towner County, ND R+45
- Wichita County, KS R+59
- Highland County, VA R+46
- Quitman County, GA R+17
- Wrangell City and Borough, AK R+8
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.