Madison County Flag

Madison County

State:
Indiana
County Seat:
Anderson

Madison County's 2026 population is estimated at 136,604, reflecting a 1.12% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Madison County is the 13th largest county in Indiana. The 2010 population was 131,621 and has grown 3.79% since 2010.

136,604
Total Population
302
Population Density (mi²)
13
Population Rank (State)
1.5K 1.12%
Annual Population Growth

Madison County Population

Demographics

Economics and Income Statistics