66215 leans Democratic by roughly 20 points: about 60% of voters vote Democratic and 40% Republican.
About 76% of adults in 66215 typically vote, above the U.S. average of about 62%. Among adults in 66215, ~45% vote Democratic, ~30% Republican, and ~25% don't vote. The map below shows estimated turnout by block group.
How 66215 compares
Among zip codes within 15 miles, 66215 leans more Democratic than 31 of 68 neighbors.
66215 runs about 36 points more Democratic than Kansas as a whole. Kansas leans Republican overall, while 66215 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 66215. The east side is the most Democratic-leaning (D+26) and the southwest side is the least Democratic-leaning (D+8), a spread of about 18 points.
Why 66215 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 66215, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in 66215 live in densely developed areas, about 63 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and 66215 sits in the top quarter (about 51%, above 90% of zip codes). 66215 runs against the grain of Kansas, a Democratic-leaning pocket in a Republican-leaning state.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; 66215, KS sits in the top tenth nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in 66215 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 66215 is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 71%, about 11 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 96% of adults in 66215 have completed high school, above 83% of zip codes. 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.