66407 is a Republican stronghold. About 19% of voters here vote Democratic and 81% Republican.
About 67% of adults in 66407 typically vote, near the U.S. average of about 62%. Among adults in 66407, ~13% vote Democratic, ~54% Republican, and ~33% don't vote. The map below shows estimated turnout by block group.
How 66407 compares
Among zip codes within 15 miles, 66407 is the most Republican-leaning.
66407 runs about 46 points more Republican than Kansas as a whole.
Politics vary noticeably by block within 66407. The west side is the most Republican-leaning (R+66) and the southeast side is the least Republican-leaning (R+54), a spread of about 12 points.
Why 66407 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 66407, not a ranked or complete list of what matters most.
Rural areas with a high white share vote Republican. 66407 sits in the bottom quarter on density and about 95% of residents are non-Hispanic white, about 10 points above the Kansas average of 85%. A high family-household share predicts Republican voting, and about 83% of households in 66407 are family households, above 95% of zip codes.
Population density and Republican lean
Places with low population density tend to lean Republican; 66407, KS sits in the bottom quarter nationally on this measure.
Why turnout in 66407 looks the way it does
Homeowners vote more often than renters. About 90% of households in 66407 own their home, about 11 points above the Kansas average of 79%. 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.