66045 is a Democratic stronghold. About 79% of voters here vote Democratic and 21% Republican.
About 31% of adults in 66045 typically vote, below the U.S. average of about 62%. Among adults in 66045, ~24% vote Democratic, ~6% Republican, and ~70% don't vote. The map below shows estimated turnout by block group.
How 66045 compares
Among zip codes within 15 miles, 66045 is the most Democratic-leaning.
66045 runs about 74 points more Democratic than Kansas as a whole. Kansas leans Republican overall, while 66045 is one of the few Democratic-leaning pockets.
Why 66045 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 66045, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 79% of residents in 66045 live in densely developed areas, about 43 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 98% of adults in 66045 have never been married, in the top fraction of zip codes. 66045 runs against the grain of Kansas, a Democratic-leaning pocket in a Republican-leaning state.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; 66045, KS sits in the bottom quarter nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in 66045 looks the way it does
Renters vote less often than owners. About 97% of households in 66045 rent, about 72 points above the U.S. average of 25%. Limited routine healthcare access lines up with lower turnout, and 66045 sits in the bottom quarter on routine-care measures. Low high-school completion lines up with lower turnout, and more than 99% of adults in 66045 have completed high school, in the top fraction 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.