Tillman County is a Republican stronghold. About 23% of voters here vote Democratic and 77% Republican.
About 60% of adults in Tillman County typically vote, near the U.S. average of about 62%. Among adults in Tillman County, ~14% vote Democratic, ~46% Republican, and ~40% don't vote. The map below shows estimated turnout by block group.
How Tillman County compares
Among counties within 50 miles, Tillman County leans more Republican than 4 of 9 neighbors.
Tillman County runs about 6 points more Republican than Oklahoma as a whole.
Politics vary noticeably by city within Tillman County. The southwest side is the most Republican-leaning (R+69) and the west side is the least Republican-leaning (R+37), a spread of about 32 points.
Why Tillman 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 Tillman County, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 16% of adults in Tillman County hold a bachelor's degree, about 12 points below the U.S. average of 28%.
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; Tillman County, OK 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 Tillman County looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Tillman County is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. High food insecurity lines up with lower turnout, and about 22% of adults in Tillman County report food insecurity, above 84% of counties. Low high-school completion lines up with lower turnout, and about 82% of adults in Tillman County have completed high school, below 89% of counties. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Wilbarger County, TX R+45
- Jackson County, OK R+48
- Comanche County, OK R+18
- Cotton County, OK R+66
- Kiowa County, OK R+61
- Wichita County, TX R+31
- Hardeman County, TX R+60
- Greer County, OK R+67
- Foard County, TX R+69
- Archer County, TX R+76
Counties with Similar Populations
- Swisher County, TX R+48
- Forest County, PA R+24
- Fall River County, SD R+52
- Powell County, MT R+48
- Bon Homme County, SD R+58
- Lake County, TN R+37
- Ida County, IA R+57
- Goliad County, TX R+60
- Caribou County, ID R+73
- Shannon County, MO R+68
Sources and methodology
Precinct-level voting records used to fit the model come from Oklahoma State Election Board, 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.