66502 leans slightly Democratic by roughly 10 points: about 55% of voters vote Democratic and 45% Republican.
About 54% of adults in 66502 typically vote, below the U.S. average of about 62%. Among adults in 66502, ~30% vote Democratic, ~24% Republican, and ~46% don't vote. The map below shows estimated turnout by block group.
How 66502 compares
Among zip codes within 15 miles, 66502 leans more Democratic than 5 of 6 neighbors.
66502 runs about 27 points more Democratic than Kansas as a whole. Kansas leans Republican overall, while 66502 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 66502. The south side runs the most Democratic (D+31) and the southeast side runs the most Republican (R+22), a spread of about 52 points.
Why 66502 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 66502, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 49% of adults in 66502 hold a bachelor's degree, about 20 points above the U.S. average of 28%. Dense areas vote Democratic, and 66502 sits in the top fifth on density (about 76%, above 81% of zip codes). A high never-married share predicts Democratic voting, and about 50% of adults in 66502 have never been married, above 95% of zip codes.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; 66502, KS sits in the top quarter nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in 66502 looks the way it does
Renters vote less often than owners. About 52% of households in 66502 rent, about 27 points above the U.S. average of 25%. 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 Kansas Secretary of State, Elections, 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.