66049 leans heavily Democratic by roughly 42 points: about 71% of voters vote Democratic and 29% Republican.
About 82% of adults in 66049 typically vote, above the U.S. average of about 62%. Among adults in 66049, ~58% vote Democratic, ~24% Republican, and ~18% don't vote. The map below shows estimated turnout by block group.
How 66049 compares
Among zip codes within 15 miles, 66049 leans more Democratic than 8 of 10 neighbors.
66049 runs about 58 points more Democratic than Kansas as a whole. Kansas leans Republican overall, while 66049 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 66049. The southeast side is the most Democratic-leaning (D+58) and the northwest side is the least Democratic-leaning (D+18), a spread of about 40 points.
Why 66049 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 66049, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 61% of adults in 66049 hold a bachelor's degree, about 33 points above the U.S. average of 28%. Dense areas vote Democratic, and 66049 sits in the top fifth on density (about 80%, above 83% of zip codes). 66049 runs against the grain of Kansas, a Democratic-leaning pocket in a Republican-leaning state.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 66049, KS sits in the top quarter nationally on this measure.
Why turnout in 66049 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 66049 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 66049 have completed high school, above 82% 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.