Oklahoma County leans slightly Democratic by roughly 6 points: about 53% of voters vote Democratic and 47% Republican.
About 54% of adults in Oklahoma County typically vote, below the U.S. average of about 62%. Among adults in Oklahoma County, ~29% vote Democratic, ~25% Republican, and ~46% don't vote. The map below shows estimated turnout by block group.
How Oklahoma County compares
Among counties within 50 miles, Oklahoma County is the most Democratic-leaning.
Oklahoma County runs about 55 points more Democratic than Oklahoma as a whole. Oklahoma leans Republican overall, while Oklahoma County is one of the few Democratic-leaning pockets.
Politics vary noticeably by city within Oklahoma County. The east side runs the most Democratic (D+23) and the northeast side runs the most Republican (R+16), a spread of about 39 points.
Why Oklahoma 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 Oklahoma County, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 85% of residents in Oklahoma County live in densely developed areas, about 48 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Oklahoma County sits in the top quarter (about 34%, above 85% of counties). Oklahoma County runs against the grain of Oklahoma, a Democratic-leaning pocket in a Republican-leaning state.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; Oklahoma County, OK sits in the top 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 Oklahoma County looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Oklahoma County is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Renters vote less often than owners, and about 40% of households in Oklahoma County rent, above 93% of counties. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Canadian County, OK R+37
- Cleveland County, OK R+14
- Logan County, OK R+45
- McClain County, OK R+60
- Grady County, OK R+58
- Pottawatomie County, OK R+49
- Kingfisher County, OK R+64
- Lincoln County, OK R+64
- Payne County, OK R+18
- Caddo County, OK R+54
Counties with Similar Populations
- Suffolk County, MA D+53
- Jefferson County, KY D+20
- Essex County, MA D+18
- San Joaquin County, CA D+4
- Multnomah County, OR D+52
- Fort Bend County, TX D+6
- Cobb County, GA D+20
- Snohomish County, WA D+10
- San Mateo County, CA D+48
- DeKalb County, GA D+63
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.