64643 is a Republican stronghold. About 16% of voters here vote Democratic and 84% Republican.
About 68% of adults in 64643 typically vote, above the U.S. average of about 62%. Among adults in 64643, ~11% vote Democratic, ~57% Republican, and ~32% don't vote. The map below shows estimated turnout by block group.
How 64643 compares
Among zip codes within 15 miles, 64643 leans more Republican than 1 of 9 neighbors.
64643 runs about 49 points more Republican than Missouri as a whole.
Why 64643 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 64643, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In 64643, about 93% of residents are non-Hispanic white, about 21 points above the U.S. average of 72%; about 16% of adults hold a bachelor's degree, about 6 points below the Missouri average of 22%. Rural areas vote Republican, and 64643 sits in the bottom quarter on density (about 5%, below 81% of zip codes).
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; 64643, MO sits in the bottom quarter 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 64643 looks the way it does
Turnout in 64643 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.