Success leans slightly Republican by roughly 8 points: about 46% of voters vote Democratic and 54% Republican.
About 25% of adults in Success typically vote, below the U.S. average of about 62%. Among adults in Success, ~11% vote Democratic, ~13% Republican, and ~76% don't vote. The map below shows estimated turnout by block group.
How Success compares
Among cities within 25 miles, Success is the least Republican-leaning.
Success runs about 10 points more Democratic than Missouri as a whole.
Politics vary noticeably by neighborhood within Success. The southeast side is the most split-leaning (R+75) and the northwest side is the least split-leaning (R+3), a spread of about 72 points.
Why Success leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Success, not a ranked or complete list of what matters most.
Success votes Republican even though it is densely developed (about 72%, far above the Missouri average of 22%). State and regional patterns outweigh the Democratic lean that density usually predicts here. Low college attainment predicts Republican voting, and Success sits in the bottom quarter (about 13%, below 84% of cities). A high family-household share predicts Republican voting, and about 78% of households in Success are family households, above 85% of cities.
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; Success, 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 Success looks the way it does
Renters vote less often than owners. About 93% of households in Success rent, about 68 points above the U.S. average of 25%. Limited routine healthcare access lines up with lower turnout, and Success sits in the bottom quarter on routine-care measures. Low high-school completion lines up with lower turnout, and about 99% of adults in Success have completed high school, above 97% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Fort Leonard Wood, MO R+10
- Duke, MO R+61
- St. Robert, MO R+29
- Waynesville, MO R+40
- Palace, MO R+66
- Devils Elbow, MO R+63
- Laquey, MO R+60
- Hooker, MO R+59
- Flat, MO R+57
Cities with Similar Populations
- Boylston, MA D+11
- Schriever, LA R+53
- Gordon, GA R+30
- Pine Grove, CA R+29
- Afton, TN R+69
- Beecher, MI D+64
- Painted Post, NY R+23
- Shannon Hills, AR R+15
- Spicer, MN R+37
- Louisville, GA D+23
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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.