64113 leans heavily Democratic by roughly 46 points: about 73% of voters vote Democratic and 27% Republican.
About more than 99% of adults in 64113 typically vote, above the U.S. average of about 62%. Among adults in 64113, ~73% vote Democratic, ~27% Republican, and ~0% don't vote. The map below shows estimated turnout by block group.
How 64113 compares
Among zip codes within 15 miles, 64113 leans more Democratic than 73 of 88 neighbors.
64113 runs about 65 points more Democratic than Missouri as a whole. Missouri leans Republican overall, while 64113 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 64113. The east side is the most Democratic-leaning (D+59) and the northwest side is the least Democratic-leaning (D+34), a spread of about 25 points.
Why 64113 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 64113, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 89% of adults in 64113 hold a bachelor's degree, about 61 points above the U.S. average of 28%. Dense areas vote Democratic, and 64113 sits in the top fifth on density (more than 99%, in the top fraction of zip codes). 64113 runs against the grain of Missouri, a Democratic-leaning pocket in a Republican-leaning state.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; 64113, MO sits in the top tenth 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 64113 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 64113 is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 78%, about 18 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 94% of households in 64113 own their home, compared to around 54% in nearby zip codes. High high-school completion lines up with higher turnout, and more than 99% of adults in 64113 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 Missouri 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.