66105 leans Democratic by roughly 16 points: about 58% of voters vote Democratic and 42% Republican.
About 29% of adults in 66105 typically vote, below the U.S. average of about 62%. Among adults in 66105, ~17% vote Democratic, ~12% Republican, and ~71% don't vote. The map below shows estimated turnout by block group.
How 66105 compares
Among zip codes within 15 miles, 66105 leans more Democratic than 38 of 82 neighbors.
66105 runs about 32 points more Democratic than Kansas as a whole. Kansas leans Republican overall, while 66105 is one of the few Democratic-leaning pockets.
Why 66105 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 66105, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in 66105 live in densely developed areas, about 63 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 38% of adults in 66105 have never been married, above 85% of zip codes. 66105 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; 66105, KS sits in the bottom tenth 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 66105 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 66105 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 40%, about 23 points below the Kansas average of 63%. Renters vote less often than owners, and about 45% of households in 66105 rent, compared to around 63% in nearby zip codes. High food insecurity lines up with lower turnout, and about 40% of adults in 66105 report food insecurity, above 98% 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.