Old Town Florissant, Florissant, MO Political Map | Democrat & Republican Areas in Old Town Florissant

By the BestNeighborhood data science team. Last updated May 2026.

Old Town Florissant leans heavily Democratic by roughly 30 points: about 65% of voters vote Democratic and 35% Republican.

 

About 71% of adults in Old Town Florissant typically vote, above the U.S. average of about 62%. Among adults in Old Town Florissant, ~46% vote Democratic, ~25% Republican, and ~29% don't vote. The map below shows estimated turnout by block group.

How Old Town Florissant compares

Old Town Florissant runs about 49 points more Democratic than Missouri as a whole. Missouri leans Republican overall, while Old Town Florissant is one of the few Democratic-leaning pockets.

Politics vary noticeably by block within Old Town Florissant. The southeast side is the most Democratic-leaning (D+44) and the southwest side is the least Democratic-leaning (D+20), a spread of about 23 points.

Why Old Town Florissant 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 Old Town Florissant, not a ranked or complete list of what matters most.

Dense areas vote Democratic. More than 99% of residents in Old Town Florissant live in densely developed areas, about 64 points above the U.S. average of 36%. Old Town Florissant 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; Old Town Florissant, Florissant, 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 Old Town Florissant looks the way it does

Turnout in Old Town Florissant sits close to the national pattern. Learn more about the findings and methodology on the political spectrum map.

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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.