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Petersham CDP, MA

ZIP 01366 — People & Community

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Upper Middle ClassLow Snow Area

Demographics, education attainment, health access, and community lifestyle

Population & Demographics in 01366

01366 has a population of 1,173 with a median age of 55.5 yrs (54.0% male).

Race & Ethnicity
White
88.5%+44% vs US avg
x
Black
0.7%-95% vs US avg
x
Asian
0.6%-90% vs US avg
x
Hispanic
3.9%-79% vs US avg
x
Other / Two+
6.3%
x
Age Groups
0–17
14.4%-35% vs US avg
x
18–64
57.7%-6% vs US avg
x
65+
27.9%+71% vs US avg
x
Education
Less than HS
2.2%-81% vs US avg
x
High school
26.3%+0% vs US avg
x
Some college
28.6%-1% vs US avg
x
Bachelor's+
42.9%+27% vs US avg
x
Marital Status
Married
58.5%+22% vs US avg
x
Never married
24.1%-29% vs US avg
x
Divorced
11.3%+10% vs US avg
x
Widowed / Separated
6.1%
x
Diversity Index
21/100

Higher = more diverse (Simpson index from race/ethnicity)

Social & household profile

Poverty, nativity, veterans, disability, family structure, and births (ACS).

Poverty Rate
8.9%-23% vs US avg
x
Foreign Born
11.8%-15% vs US avg
x
Veterans
6.1%+1% vs US avg
x
Disability
13.1%-2% vs US avg
x
Single Parent
4.3%-47% vs US avg
x
Recent Births
0.0%
x
Top ancestry
IrishEnglishGerman

Health & Community Indicators in 01366

Poverty Rate
8.9%-23% vs US avg
x
Veterans
6.1%+1% vs US avg
x
Foreign Born
11.8%-15% vs US avg
x
Single Parent
4.3%-47% vs US avg
x
Disability
13.1%-2% vs US avg
x
Uninsured
0.8%-90% vs US avg
x
SNAP Benefits
6.9%-41% vs US avg
x
Private School
0.3%-97% vs US avg
x
Recent Births
0.0%
x
Smartphone Only
0.0%
x

People & Community key statistics

Population statistics
Population
Population1,173
Median age55.5
Poverty rate8.9%
Demographics statistics
Demographics
White88.5%
Hispanic3.9%
Black0.7%
Asian0.6%
Foreign-born11.8%