Grantsville
- County:
- Garrett County
- County Seat:
- No
- Area (mi²):
- 1.037
- State:
- Maryland
Grantsville is a town located in Garrett County, Maryland. Grantsville has a 2026 population of 951. Grantsville is currently declining at a rate of -0.31% annually and its population has decreased by -1.35% since the most recent census, which recorded a population of 964 in 2020.
The median household income in Grantsville is $38,512 with a poverty rate of 25.91%. The median age in Grantsville is 48 years: 44.9 years for males, and 51.4 years for females. For every 100 females there are 75.0 males.