66418 leans heavily Republican by roughly 38 points: about 31% of voters vote Democratic and 69% Republican.
About 61% of adults in 66418 typically vote, near the U.S. average of about 62%. Among adults in 66418, ~19% vote Democratic, ~42% Republican, and ~39% don't vote. The map below shows estimated turnout by block group.
How 66418 compares
Among zip codes within 15 miles, 66418 is the least Republican-leaning.
66418 runs about 23 points more Republican than Kansas as a whole.
Why 66418 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 66418, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 5% of residents in 66418 live in densely developed areas, about 14 points below the Kansas average of 19%. A high family-household share predicts Republican voting, and about 76% of households in 66418 are family households, above 83% of zip codes.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; 66418, KS sits in the bottom 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 66418 looks the way it does
Crowded housing lines up with lower turnout. About 7% of homes in 66418 have more than one occupant per room, above 91% 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.