Jeff Davis County is a Republican stronghold. About 24% of voters here vote Democratic and 76% Republican.
About 78% of adults in Jeff Davis County typically vote, above the U.S. average of about 62%. Among adults in Jeff Davis County, ~19% vote Democratic, ~59% Republican, and ~22% don't vote. The map below shows estimated turnout by block group.
How Jeff Davis County compares
Jeff Davis County runs about 38 points more Republican than Texas as a whole.
Why Jeff Davis 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 Jeff Davis County, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 4% of residents in Jeff Davis County live in densely developed areas, about 31 points below the Texas average of 35%.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; Jeff Davis County, TX sits in the bottom tenth nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in Jeff Davis County looks the way it does
Homeowners vote more often than renters. About 87% of households in Jeff Davis County own their home, about 12 points above the Texas average of 75%. Limited routine healthcare access lines up with lower turnout, and Jeff Davis County sits in the bottom quarter on routine-care measures. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Brewster County, TX R+12
- Presidio County, TX D+4
- Culberson County, TX R+18
- Reeves County, TX R+33
- Pecos County, TX R+28
- Ward County, TX R+56
- Winkler County, TX R+59
- Terrell County, TX R+65
- Hudspeth County, TX R+45
Counties with Similar Populations
- Gilliam County, OR R+48
- Clark County, KS R+73
- Worth County, MO R+64
- Judith Basin County, MT R+62
- Menard County, TX R+53
- Liberty County, MT R+56
- Buffalo County, SD D+24
- Keweenaw County, MI Even
- Meagher County, MT R+58
- Wheatland County, MT R+66
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.