63077 is a Republican stronghold. About 24% of voters here vote Democratic and 76% Republican.
About 69% of adults in 63077 typically vote, above the U.S. average of about 62%. Among adults in 63077, ~17% vote Democratic, ~53% Republican, and ~30% don't vote. The map below shows estimated turnout by block group.
How 63077 compares
Among zip codes within 15 miles, 63077 leans more Republican than 7 of 14 neighbors.
63077 runs about 34 points more Republican than Missouri as a whole.
Politics vary noticeably by block within 63077. The southwest side is the most Republican-leaning (R+60) and the east side is the least Republican-leaning (R+45), a spread of about 14 points.
Why 63077 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 63077, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 14% of adults in 63077 hold a bachelor's degree, about 8 points below the Missouri average of 22%.
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; 63077, MO sits in the bottom quarter nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in 63077 looks the way it does
Turnout in 63077 sits close to the national pattern. 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.