64101 leans heavily Democratic by roughly 30 points: about 65% of voters vote Democratic and 35% Republican.
About 57% of adults in 64101 typically vote, near the U.S. average of about 62%. Among adults in 64101, ~37% vote Democratic, ~20% Republican, and ~43% don't vote. The map below shows estimated turnout by block group.
How 64101 compares
Among zip codes within 15 miles, 64101 leans more Democratic than 54 of 84 neighbors.
64101 runs about 49 points more Democratic than Missouri as a whole. Missouri leans Republican overall, while 64101 is one of the few Democratic-leaning pockets.
Why 64101 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 64101, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 93% of residents in 64101 live in densely developed areas, about 57 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and 64101 sits in the top quarter (about 49%, above 88% of zip codes). 64101 runs against the grain of Missouri, a Democratic-leaning pocket in a Republican-leaning state.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 64101, MO sits in the top tenth nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in 64101 looks the way it does
Renters vote less often than owners. More than 99% of households in 64101 rent, about 75 points above the U.S. average of 25%. Crowded housing lines up with lower turnout, and about 7% of homes in 64101 have more than one occupant per room, above 91% of zip codes. High-crime urban areas turn out at lower rates, and 64101 sits in the top 15% on a violent-crime measure. 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.