66042 is a Republican stronghold. About 22% of voters here vote Democratic and 78% Republican.
About 63% of adults in 66042 typically vote, near the U.S. average of about 62%. Among adults in 66042, ~14% vote Democratic, ~49% Republican, and ~37% don't vote. The map below shows estimated turnout by block group.
How 66042 compares
Among zip codes within 15 miles, 66042 leans more Republican than 5 of 8 neighbors.
66042 runs about 40 points more Republican than Kansas as a whole.
Why 66042 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 66042, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In 66042, about 96% of residents are non-Hispanic white, about 23 points above the U.S. average of 72%; about 17% of adults hold a bachelor's degree, about 10 points below the Kansas average of 27%. Rural areas vote Republican, and 66042 sits in the bottom quarter on density (about 5%, below 79% of zip codes). A high family-household share predicts Republican voting, and about 77% of households in 66042 are family households, above 85% of zip codes.
Population density and Republican lean
Places with low population density tend to lean Republican; 66042, KS sits in the bottom quarter nationally on this measure.
Why turnout in 66042 looks the way it does
Areas with high high-school completion turn out at higher rates. About 99% of adults in 66042 have completed high school, about 6 points above the Kansas average of 93%. 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.