Jefferson County Flag

Jefferson County

State:
Indiana
County Seat:
Madison

Jefferson County's estimated 2026 population is 33,494 with a growth rate of 0.65% in the past year according to the most recent United States census data. Jefferson County is the 50th largest county in Indiana. The 2010 population was 32,399 and has seen a growth of 3.38% since that time.

33,494
Total Population
93
Population Density (mi²)
50
Population Rank (State)
215 0.65%
Annual Population Growth

Jefferson County Population

Demographics

Economics and Income Statistics