73121 leans heavily Democratic by roughly 48 points: about 74% of voters vote Democratic and 26% Republican.
About 64% of adults in 73121 typically vote, near the U.S. average of about 62%. Among adults in 73121, ~47% vote Democratic, ~17% Republican, and ~36% don't vote. The map below shows estimated turnout by block group.
How 73121 compares
Among zip codes within 15 miles, 73121 leans more Democratic than 48 of 52 neighbors.
73121 runs about 96 points more Democratic than Oklahoma as a whole. Oklahoma leans Republican overall, while 73121 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 73121. The southwest side is the most Democratic-leaning (D+75) and the north side is the least Democratic-leaning (D+17), a spread of about 57 points.
Why 73121 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 73121, not a ranked or complete list of what matters most.
73121 votes against the grain of Oklahoma. Oklahoma leans Republican overall, while 73121 runs about 96 points more Democratic.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; 73121, OK sits above the national average on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in 73121 looks the way it does
Turnout in 73121 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.