63876 is a Republican stronghold. About 19% of voters here vote Democratic and 81% Republican.
About 58% of adults in 63876 typically vote, near the U.S. average of about 62%. Among adults in 63876, ~11% vote Democratic, ~47% Republican, and ~42% don't vote. The map below shows estimated turnout by block group.
How 63876 compares
Among zip codes within 15 miles, 63876 leans more Republican than 2 of 9 neighbors.
63876 runs about 44 points more Republican than Missouri as a whole.
Politics vary noticeably by block within 63876. The northeast side is the most Republican-leaning (R+73) and the east side is the least Republican-leaning (R+59), a spread of about 15 points.
Why 63876 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 63876, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 9% of adults in 63876 hold a bachelor's degree, about 13 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; 63876, MO sits in the bottom tenth nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in 63876 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 63876 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 48%, about 10 points below the Missouri average of 57%. High food insecurity lines up with lower turnout, and about 24% of adults in 63876 report food insecurity, above 87% of zip codes. Low high-school completion lines up with lower turnout, and about 78% of adults in 63876 have completed high school, below 94% of zip codes. 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.