66101 leans heavily Democratic by roughly 46 points: about 73% of voters vote Democratic and 27% Republican.
About 33% of adults in 66101 typically vote, below the U.S. average of about 62%. Among adults in 66101, ~24% vote Democratic, ~9% Republican, and ~67% don't vote. The map below shows estimated turnout by block group.
How 66101 compares
Among zip codes within 15 miles, 66101 leans more Democratic than 66 of 82 neighbors.
66101 runs about 62 points more Democratic than Kansas as a whole. Kansas leans Republican overall, while 66101 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 66101. The northeast side is the most Democratic-leaning (D+63) and the southwest side is the least Democratic-leaning (D+34), a spread of about 29 points.
Why 66101 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 66101, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in 66101 live in densely developed areas, about 64 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 48% of adults in 66101 have never been married, above 94% of zip codes. 66101 runs against the grain of Kansas, a Democratic-leaning pocket in a Republican-leaning state.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 66101, KS sits in the top tenth nationally 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 66101 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 66101 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 44%, about 19 points below the Kansas average of 63%. Renters vote less often than owners, and about 61% of households in 66101 rent, about 36 points above the U.S. average of 25%. High food insecurity lines up with lower turnout, and about 37% of adults in 66101 report food insecurity, above 97% 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.