Madison County Flag

Madison County

State:
Ohio
County Seat:
London

Madison County's estimated 2026 population is 48,182 with a growth rate of 2.55% in the past year according to the most recent United States census data. Madison County is the 50th largest county in Ohio. The 2010 population was 43,434 and has seen a growth of 10.93% since that time.

48,182
Total Population
103
Population Density (mi²)
50
Population Rank (State)
1.2K 2.55%
Annual Population Growth

Madison County Population

Demographics

Economics and Income Statistics