66606 leans Democratic by roughly 18 points: about 59% of voters vote Democratic and 41% Republican.
About 63% of adults in 66606 typically vote, near the U.S. average of about 62%. Among adults in 66606, ~37% vote Democratic, ~26% Republican, and ~37% don't vote. The map below shows estimated turnout by block group.
How 66606 compares
Among zip codes within 15 miles, 66606 leans more Democratic than 20 of 26 neighbors.
66606 runs about 34 points more Democratic than Kansas as a whole. Kansas leans Republican overall, while 66606 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 66606. The southeast side is the most Democratic-leaning (D+33) and the northwest side is the least Democratic-leaning (D+2), a spread of about 31 points.
Why 66606 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 66606, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 93% of residents in 66606 live in densely developed areas, about 57 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 38% of adults in 66606 have never been married, above 84% of zip codes. 66606 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; 66606, KS sits in the top quarter 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 66606 looks the way it does
Turnout in 66606 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 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.