Petersham, Massachusetts

Petersham, Massachusetts
Location in Worcester County and the state of Massachusetts.
Coordinates: 42°29′15″N 72°11′15″W / 42.48750°N 72.18750°W / 42.48750; -72.18750
CountryUnited States
StateMassachusetts
CountyWorcester
Settled1733
Incorporated1754
Government
 • TypeOpen town meeting
Area
 • Total
68.3 sq mi (176.9 km2)
 • Land54.2 sq mi (140.5 km2)
 • Water14.1 sq mi (36.4 km2)
Elevation
1,079 ft (329 m)
Population
 (2020)
 • Total
1,194
 • Density22.01/sq mi (8.498/km2)
Time zoneUTC-5 (Eastern)
 • Summer (DST)UTC-4 (Eastern)
ZIP code
01366
Area code351 / 978
FIPS code25-53120
GNIS feature ID0619486
Websitetownofpetersham.org

Petersham /ˈptərsæm/ is a town in Worcester County, Massachusetts, United States. The population was 1,194 at the 2020 census. Petersham is home to a considerable amount of conservation land, including the Quabbin Reservation, Harvard Forest, the Swift River Reservation, and Federated Women's Club State Forest.