Dallam County leans heavily Republican by roughly 46 points: about 27% of voters vote Democratic and 73% Republican.
About 50% of adults in Dallam County typically vote, below the U.S. average of about 62%. Among adults in Dallam County, ~14% vote Democratic, ~37% Republican, and ~49% don't vote. The map below shows estimated turnout by block group.
How Dallam County compares
Among counties within 50 miles, Dallam County leans more Republican than 1 of 5 neighbors.
Dallam County runs about 33 points more Republican than Texas as a whole.
Politics vary noticeably by city within Dallam County. The southwest side is the most Republican-leaning (R+87) and the south side is the least Republican-leaning (R+34), a spread of about 53 points.
Why Dallam 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 Dallam County, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 10% of adults in Dallam County hold a bachelor's degree, about 15 points below the Texas average of 26%. Car-dependent areas vote Republican, and about 84% of residents in Dallam County drive to work alone, above 92% of counties. A high family-household share predicts Republican voting, and about 75% of households in Dallam County are family households, above 95% of counties.
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; Dallam County, TX sits in the bottom tenth nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Dallam County looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Dallam 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 47%, about 6 points below the Texas average of 54%. Renters vote less often than owners, and about 33% of households in Dallam County rent, above 83% of counties. Low high-school completion lines up with lower turnout, and about 75% of adults in Dallam County have completed high school, below 98% of counties. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Hartley County, TX R+76
- Sherman County, TX R+69
- Moore County, TX R+32
- Cimarron County, OK R+68
- Union County, NM R+52
- Oldham County, TX R+80
- Hutchinson County, TX R+60
- Hansford County, TX R+68
- Potter County, TX R+19
- Texas County, OK R+45
Counties with Similar Populations
- Union County, IN R+58
- Kit Carson County, CO R+64
- Pocahontas County, IA R+48
- Brooks County, TX D+7
- Nemaha County, NE R+45
- Beaver County, UT R+69
- Ferry County, WA R+31
- Crook County, WY R+78
- Blaine County, MT Even
- Shannon County, MO R+68
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.