Petersham

County:: Worcester County
County Seat:: No
Area (mi²):: 1.234
State:: Massachusetts

Petersham is a CDP located in Worcester County, Massachusetts. Petersham has a 2025 population of 283. Petersham is currently growing at a rate of 1.07% annually and its population has increased by 10.55% since the most recent census, which recorded a population of 256 in 2020.

The average household income in Petersham is $123,238 with a poverty rate of 7.94%.The median age in Petersham is 57.8 years: 57.8 years for males, and 56 years for females.

Demographics

The racial composition of Petersham includes 92.86% White, and smaller percentages for and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	234	92.86%
Two or more races	18	7.14%

Petersham Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Petersham's average per capita income is $48,750. Household income levels show a median of $105,938. The poverty rate stands at 7.94%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$135,938	-
Families	$128,333	$142,727
Households	$105,938	$123,238
Non Families	$58,542	$90,855

$48,750

Average Income

$105,938

Median Household Income

7.94%

Poverty Rate