Adams County Flag

Adams County

State:
Pennsylvania
County Seat:
Gettysburg

Adams County's 2026 population is estimated at 109,448, reflecting a 0.71% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Adams County is the 30th largest county in Pennsylvania. The 2010 population was 101,472 and has grown 7.86% since 2010.

109,448
Total Population
211
Population Density (mi²)
30
Population Rank (State)
767 0.71%
Annual Population Growth

Adams County Population

Demographics

Economics and Income Statistics