Jennings Flag

Jennings

County Seat:
No
Area (mi²):
3.733
State:
Missouri

Jennings is a city located in St. Louis County, Missouri. Jennings has a 2026 population of 13,024. Jennings is currently growing at a rate of 1.1% annually and its population has increased by 0.95% since the most recent census, which recorded a population of 12,902 in 2020.

13K
Total Population
3,489
Density (mi²)
142 1.1%
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)