64110 is a Democratic stronghold. About 87% of voters here vote Democratic and 13% Republican.
About 55% of adults in 64110 typically vote, below the U.S. average of about 62%. Among adults in 64110, ~48% vote Democratic, ~7% Republican, and ~45% don't vote. The map below shows estimated turnout by block group.
How 64110 compares
Among zip codes within 15 miles, 64110 leans more Democratic than 85 of 89 neighbors.
64110 runs about 92 points more Democratic than Missouri as a whole. Missouri leans Republican overall, while 64110 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 64110. The southeast side is the most Democratic-leaning (D+87) and the southwest side is the least Democratic-leaning (D+64), a spread of about 23 points.
Why 64110 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 64110, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in 64110 live in densely developed areas, about 64 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and 64110 sits in the top quarter (about 52%, above 90% of zip codes). 64110 runs against the grain of Missouri, a Democratic-leaning pocket in a Republican-leaning state.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 64110, MO sits in the top tenth nationally on this measure.
Why turnout in 64110 looks the way it does
Renters vote less often than owners. About 48% of households in 64110 rent, about 23 points above the U.S. average of 25%. 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.