63016 leans heavily Republican by roughly 48 points: about 26% of voters vote Democratic and 74% Republican.
About 84% of adults in 63016 typically vote, above the U.S. average of about 62%. Among adults in 63016, ~22% vote Democratic, ~62% Republican, and ~16% don't vote. The map below shows estimated turnout by block group.
How 63016 compares
Among zip codes within 15 miles, 63016 leans more Republican than 11 of 19 neighbors.
63016 runs about 31 points more Republican than Missouri as a whole.
Why 63016 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 63016. The lean here lands roughly where demographic data alone would predict.
Renting and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; 63016, MO sits in the bottom tenth nationally on this measure.
Why turnout in 63016 looks the way it does
Homeowners vote more often than renters. About 92% of households in 63016 own their home, about 14 points above the Missouri average of 78%. 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.