Community & Data
Demographics
A Portrait of Princeton
Princeton spreads across about 35 square miles of hills, farms, and forest on the slopes of Wachusett Mountain, and it is a small town: roughly 3,500 people in about 1,300 households. About one resident in five is 65 or over, and about the same share is under 18. Nearly all of its homes are owner-occupied, households average 2.6 people, and the median household income is well above the state figure. The numbers below are from the U.S. Census Bureau and the Secretary of the Commonwealth. Follow the source links for the latest.
Key Figures
Sources: US Census Bureau (data.census.gov).
Population & Households
- Population (2020 Census): 3,495
- Households: 1,324
- Persons per household: 2.6
- Foreign-born: 3.8% of residents
- Age 65 and over: 20.3%
- Under 18: 20.8%
Race & Ethnicity
- White: 94.2%
- Asian: 0.0%
- Black or African American: 0.3%
- Hispanic or Latino (any race): 2.2%
- Two or more races: 4.4%
- Speak a language other than English at home: 4.5%
Economy & Housing
- Median household income: $150,577
- Poverty rate: 4.4%
- Median home value: $496,400
- Median gross rent: $921
- Homeownership: 95.3% of units
- In the labor force: 70.2%
Registered Voters
Massachusetts publishes voter-registration counts by town through the Secretary of the Commonwealth; the counts below are the state’s enrollment snapshot from February 1, 2025. As in most of the state, Princeton’s largest bloc by far is voters who choose no party at all.
- Total registered: 3,179
- Unenrolled (no party): 2,196 (69.08%)
- Democrats: 549 (17.27%)
- Republicans: 396 (12.46%)
Sources
See how Princeton fits into the broader Commonwealth.