Oklahoma Political Map | Democrat & Republican Areas in Oklahoma

By the BestNeighborhood data science team. Last updated May 2026.

Oklahoma leans Republican by roughly 26 points: about 37% of voters vote Democratic and 63% Republican.

 

About 58% of adults in Oklahoma typically vote, near the U.S. average of about 62%. Among adults in Oklahoma, ~21% vote Democratic, ~37% Republican, and ~42% don't vote. The map below shows estimated turnout by block group.

How Oklahoma compares

Among states within 500 miles, Oklahoma is the most Republican-leaning.

Politics vary noticeably by county within Oklahoma. The southeast side is the most Republican-leaning (R+60) and the northeast side is the least Republican-leaning (R+16), a spread of about 44 points.

Why Oklahoma leans the way it does

This analysis examined 14,881 data points per state to find what predicts political lean and turnout. The items below are a few correlations that stood out for Oklahoma, not a ranked or complete list of what matters most.

Car-dependent areas vote Republican. About 78% of residents in Oklahoma drive to work alone, above 88% of states. Low college attainment predicts Republican voting, and Oklahoma sits in the bottom quarter (about 28%, below 86% of states).

Cancer-screening access and voter turnout

Places with low colon-cancer-screening access tend to turn out at a lower rate; Oklahoma sits in the bottom quarter nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.

Why turnout in Oklahoma looks the way it does

Areas with limited routine healthcare access turn out at lower rates. Oklahoma 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 20% of adults in Oklahoma report food insecurity, above 87% of states. Low high-school completion lines up with lower turnout, and about 89% of adults in Oklahoma have completed high school, below 74% of states. Learn more about the findings and methodology on the political spectrum map.

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.