Cleveland County leans slightly Republican by roughly 14 points: about 43% of voters vote Democratic and 57% Republican.
About 60% of adults in Cleveland County typically vote, near the U.S. average of about 62%. Among adults in Cleveland County, ~26% vote Democratic, ~34% Republican, and ~40% don't vote. The map below shows estimated turnout by block group.
How Cleveland County compares
Among counties within 50 miles, Cleveland County leans more Republican than 1 of 9 neighbors.
Cleveland County runs about 34 points more Democratic than Oklahoma as a whole.
Politics vary noticeably by city within Cleveland County. The south side runs the most Democratic (D+17) and the northeast side runs the most Republican (R+48), a spread of about 66 points.
Why Cleveland 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 Cleveland County, not a ranked or complete list of what matters most.
Cleveland County votes Republican even though it is densely developed (about 71%, far above the Oklahoma average of 18%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; Cleveland County, OK 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 Cleveland County looks the way it does
Renters vote less often than owners. About 34% of households in Cleveland County rent, about 9 points above the U.S. average of 25%. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- McClain County, OK R+60
- Oklahoma County, OK D+6
- Canadian County, OK R+37
- Grady County, OK R+58
- Pottawatomie County, OK R+49
- Garvin County, OK R+61
- Logan County, OK R+45
- Lincoln County, OK R+64
- Seminole County, OK R+51
- Caddo County, OK R+54
Counties with Similar Populations
- Chatham County, GA D+26
- Dutchess County, NY D+8
- Ottawa County, MI R+16
- Thurston County, WA D+19
- Lexington County, SC R+30
- Clayton County, GA D+68
- Leon County, FL D+26
- Greene County, MO R+18
- Anchorage Municipality, AK D+20
- St. Louis City, MO D+65
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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.