74021 leans heavily Republican by roughly 40 points: about 30% of voters vote Democratic and 70% Republican.
About 66% of adults in 74021 typically vote, near the U.S. average of about 62%. Among adults in 74021, ~20% vote Democratic, ~46% Republican, and ~34% don't vote. The map below shows estimated turnout by block group.
How 74021 compares
Among zip codes within 15 miles, 74021 leans more Republican than 11 of 20 neighbors.
74021 runs about 8 points more Democratic than Oklahoma as a whole.
Politics vary noticeably by block within 74021. The northeast side is the most Republican-leaning (R+54) and the south side is the least Republican-leaning (R+30), a spread of about 24 points.
Why 74021 leans the way it does
This analysis examined 14,881 data points per zip code to find what predicts political lean and turnout. The items below are a few correlations that stood out for 74021, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 76% of households in 74021 are family households, about 10 points above the U.S. average of 67%.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 74021, OK sits above the national average 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 74021 looks the way it does
Turnout in 74021 sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Zip Codes
Zip Codes with Similar Populations
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.