Madison County Flag

Madison County

State:
Illinois
County Seat:
Edwardsville

Madison County's estimated 2025 population is 262,592 with a growth rate of -0.16% in the past year according to the most recent United States census data. Madison County is the 8th largest county in Illinois. The 2010 population was 269,315 and has seen a growth of -2.5% since that time.

262,592
Total Population
367
Population Density (mi²)
8
Population Rank (State)
-425 -0.16%
Annual Population Growth

Madison County Population

Demographics

Economics and Income Statistics

Sources

  1. City and Town Population Totals: 2020-2024
  2. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  3. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  4. American Community Survey (2009 - 2013)
  5. Census QuickFacts
  6. Historical Populations of States and Counties (1790 - 1990)