63373 is a Republican stronghold. About 22% of voters here vote Democratic and 78% Republican.
About 66% of adults in 63373 typically vote, near the U.S. average of about 62%. Among adults in 63373, ~15% vote Democratic, ~51% Republican, and ~34% don't vote. The map below shows estimated turnout by block group.
How 63373 compares
Among zip codes within 15 miles, 63373 is the most Republican-leaning.
63373 runs about 37 points more Republican than Missouri as a whole.
Why 63373 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 63373, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 90% of residents in 63373 drive to work alone, about 16 points above the U.S. average of 74%.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; 63373, MO sits in the bottom quarter 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 63373 looks the way it does
Homeowners vote more often than renters. About 89% of households in 63373 own their home, about 11 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.