Union County Flag

Union County

State:
Indiana
County Seat:
Liberty

Union County's 2026 population is estimated at 6,708, reflecting a -1.29% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Union County is the 91st largest county in Indiana. The 2010 population was 7,537 and has grown -11% since 2010.

6,708
Total Population
42
Population Density (mi²)
91
Population Rank (State)
-88 -1.29%
Annual Population Growth

Union County Population

Demographics

Economics and Income Statistics