Florissant Flag

Florissant

County Seat:
No
Area (mi²):
12.552
State:
Missouri

Florissant is a city located in St. Louis County, Missouri. Florissant has a 2026 population of 51,290. Florissant is currently declining at a rate of -0.06% annually and its population has decreased by -2.23% since the most recent census, which recorded a population of 52,459 in 2020.

51.3K
Total Population
4,086
Density (mi²)
-33 -0.06%
Growth

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)