South Hampton, St. Louis, MO Political Map | Democrat & Republican Areas in South Hampton

South Hampton is a Democratic stronghold. About 78% of voters here vote Democratic and 22% Republican.

 
South Hampton, St. Louis, MO block-group political-lean map
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About 73% of adults in South Hampton typically vote, above the U.S. average of about 62%. Among adults in South Hampton, ~57% vote Democratic, ~16% Republican, and ~27% don't vote. The map below shows estimated turnout by block group.

South Hampton, St. Louis, MO block-group voter-turnout map
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How South Hampton compares

Among neighborhoods within 5 miles, South Hampton leans more Democratic than 11 of 27 neighbors.

South Hampton runs about 74 points more Democratic than Missouri as a whole. Missouri leans Republican overall, while South Hampton is one of the few Democratic-leaning pockets.

Politics vary noticeably by block within South Hampton. The northeast side is the most Democratic-leaning (D+62) and the northwest side is the least Democratic-leaning (D+49), a spread of about 13 points.

Why South Hampton leans the way it does

This analysis examined 14,881 data points per neighborhood to find what predicts political lean and turnout. The items below are a few correlations that stood out for South Hampton, not a ranked or complete list of what matters most.

Dense areas vote Democratic. More than 99% of residents in South Hampton live in densely developed areas, about 64 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and South Hampton sits in the top quarter (about 57%, above 78% of neighborhoods). South Hampton runs against the grain of Missouri, a Democratic-leaning pocket in a Republican-leaning state.

Developed land and Democratic lean

Places with a heavily developed built environment tend to lean Democratic; South Hampton, St. Louis, MO sits in the top quarter nationally on this measure. Developed land does not change how people vote; it mostly reflects how urban a place is.

Why turnout in South Hampton looks the way it does

Turnout in South Hampton sits close to the national pattern. Learn more about the findings and methodology on the political spectrum map.

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.