64155 is a true toss-up. About 48% of voters here vote Democratic and 52% Republican.
About 81% of adults in 64155 typically vote, above the U.S. average of about 62%. Among adults in 64155, ~39% vote Democratic, ~42% Republican, and ~19% don't vote. The map below shows estimated turnout by block group.
How 64155 compares
Among zip codes within 15 miles, 64155 leans more Republican than 29 of 47 neighbors.
64155 runs about 15 points more Democratic than Missouri as a whole.
Politics vary noticeably by block within 64155. The west side runs the most Democratic (D+5) and the northeast side runs the most Republican (R+14), a spread of about 20 points.
Why 64155 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 64155. The lean here lands roughly where demographic data alone would predict.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; 64155, MO sits above the national average on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in 64155 looks the way it does
Areas with high high-school completion turn out at higher rates. About 97% of adults in 64155 have completed high school, about 7 points above the Missouri average of 89%. 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.