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 Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Other race

Race	Population	Percentage (of total)
White	234	92.86%
Two or more races	18	7.14%
Black or African American	0	0%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

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