Hagerstown
- County:
- Washington County
- County Seat:
- Yes
- Area (mi²):
- 13.258
- State:
- Maryland
Hagerstown is a city located in Washington County, Maryland. Hagerstown has a 2026 population of 43,909. It is also the county seat of Washington County. Hagerstown is currently growing at a rate of 0.62% annually and its population has increased by 0.9% since the most recent census, which recorded a population of 43,518 in 2020.