Town · Maine
Princeton, Maine
Princeton, town, in Washington County, Maine. Princeton had 749 residents on July 1, 2025 by the Census Bureau's estimate, up 0.1% since 2020; the 2020 Census counted 745 and the ACS 2020-2024 5-year estimates put it at 866 (±153). GEOID 2302961035.
Residents, July 2025 estimate
749
Census Bureau estimate (no margin published)
2020 Census count: 745 · ACS 2020-2024: 866 ±153
Median household income
$56,406
±$25,998 (90% margin)
Maine: $74,733
Median home value
$120,800
±$82,126 (90% margin)
Maine: $296,600
Median gross rent
$675
±$351 (90% margin)
Maine: $1,139
Where is Princeton and what county is it in?
Princeton is a town in Washington County, Maine. It covers 36.6 square miles of land, 20 residents per square mile in 2020.
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Princeton, and is it growing?
The Census Bureau estimates that 749 people lived in Princeton on July 1, 2025, up 0.1% since 2020, slower than Maine (+3.8%). The 2020 Census counted 745 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 866 (±153).
| Measure | Princeton | Washington County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 866±153 | 31,331 | +244 |
| Households | 373±71 | 14,187 | no clear change |
| Average household size | 2.32±0.24 | 2.14 | no clear change |
| Housing units | 454±73 | 21,726 | no clear change |
Princeton's population since 2000
From 892 in 2000 to 749 in 2025: down 16.0%. The 2000, 2010 and 2020 figures are census counts, each for Princeton as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Princeton?
The median resident of Princeton is 39.1 years old; 28.2% are under 18 and 19.7% are 65 or older. The largest group is non-Hispanic white residents at 84.2%, then Hispanic or Latino residents (of any race) at 6.7%.
| Measure | Princeton | Washington County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 39.1±9.4 | 48.6 | no clear change |
| Under 18 years | 28.2%±6.3 pts | 18.5% | – |
| 65 years and over | 19.7%±5.4 pts | 26.3% | – |
| Male | 53.2%±5.0 pts | 49.3% | – |
| Hispanic or Latino (any race) | 6.7%±6.6 pts | 2.5% | – |
| White alone, not Hispanic | 84.2%±8.8 pts | 87.6% | no clear change |
| Black or African American alone, not Hispanic | 0.0%±3.1 pts | 0.7% | – |
| Asian alone, not Hispanic | 0.8%±1.3 pts | 0.3% | – |
| American Indian and Alaska Native alone, not Hispanic | 6.7%±6.5 pts | 4.4% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±3.1 pts | 0.1% | – |
| Two or more races, not Hispanic | 1.6%±1.9 pts | 4.1% | – |
| Some other race alone, not Hispanic | 0.0%±3.1 pts | 0.2% | – |
| Born outside the United States | 8.9%±6.1 pts | 3.7% | – |
| Speak a language other than English at home (age 5+) | 4.2%±3.1 pts | 5.6% | – |
| Civilian veterans (age 18+) | 10.5%±4.8 pts | 11.7% | – |
| With a disability | 22.9%±6.9 pts | 22.6% | – |
| No health insurance coverage | 6.4%±3.4 pts | 9.1% | no clear change |
| High school graduate or higher (age 25+) | 93.0%±3.5 pts | 91.1% | – |
| Bachelor's degree or higher (age 25+) | 24.5%±6.9 pts | 24.7% | +10.9 pts |
| Graduate or professional degree (age 25+) | 3.0%±2.0 pts | 9.0% | – |
| Lived in the same house a year earlier | 95.9%±2.3 pts | 89.3% | – |
| Moved from another state in the past year | 0.5%±0.6 pts | 3.1% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Princeton earn?
Half of Princeton's 373 households earn less than $56,406 a year (±$25,998), against $56,024 in Washington County and $74,733 in Maine. In 2015-2019 it was $40,767 in 2024 dollars; the margins of error cannot tell the two periods apart. 15.3% of residents live below the poverty line.
| Measure | Princeton | Washington County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $56,406±$25,998 | $56,024 | no clear change |
| Mean household income | $79,973±$22,127 | $74,471 | – |
| Per capita income | $33,543±$10,218 | $33,745 | no clear change |
| People below the poverty line | 15.3%±7.7 pts | 17.1% | no clear change |
| Children under 18 below the poverty line | 19.1%±15.8 pts | 18.9% | – |
| Households receiving SNAP | 20.4%±8.9 pts | 18.8% | – |
| Households with a computer | 91.4%±5.0 pts | 91.6% | – |
| Households with a broadband subscription | 83.1%±5.7 pts | 84.3% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Princeton?
Owners occupy 74.3% of Princeton's occupied homes and renters 25.7%. The median renter pays $675 a month including utilities, and 55.1% of renters pay 35% or more of their income on rent.
| Measure | Princeton | Washington County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $120,800±$82,126 | $161,800 | – |
| Median gross rent | $675±$351 | $783 | no clear change |
| Renters paying 35% or more of income on rent | 55.1%±21.5 pts | 38.4% | – |
| Median monthly owner costs, with a mortgage | $1,568±$545 | $1,275 | – |
| Owner-occupied homes | 74.3%±9.6 pts | 79.7% | no clear change |
| Renter-occupied homes | 25.7%±9.6 pts | 20.3% | – |
| Housing units | 454±73 | 21,726 | no clear change |
| Homeowner vacancy rate | 0.0%±9.4 pts | 0.8% | – |
| Rental vacancy rate | 14.3%±12.8 pts | 7.7% | – |
| Single-family detached homes | 71.1%±8.3 pts | 81.4% | – |
| Mobile homes | 17.8%±7.2 pts | 11.2% | – |
| Built 2020 or later | 0.0%±5.9 pts | 1.6% | – |
| Built 2010 to 2019 | 15.6%±11.9 pts | 5.5% | – |
| Built 1939 or earlier | 17.4%±7.5 pts | 27.1% | – |
| Households with no vehicle | 3.5%±2.5 pts | 6.1% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How do people in Princeton work and get to work?
73.5% of Princeton's workers drive alone and 9.6% work from home. The average trip to work takes 21.5 minutes.
| Measure | Princeton | Washington County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 58.0%±9.1 pts | 52.9% | – |
| Unemployment rate | 2.7%±2.2 pts | 6.3% | – |
| Drove alone to work | 73.5%±10.5 pts | 75.6% | – |
| Carpooled | 11.7%±7.8 pts | 9.1% | – |
| Public transportation | 0.0%±7.7 pts | 0.5% | – |
| Walked | 5.2%±5.3 pts | 4.2% | – |
| Worked from home | 9.6%±5.8 pts | 9.7% | – |
| Mean travel time to work | 21.5 min±6.6 | 21.6 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Princeton?
No census tract lies mostly in Princeton; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 9553Washington County | 1,572 | $72,500 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Princeton) · Census block assignment files
How does Princeton compare with other places in Maine?
By the Census Bureau's July 2025 estimates, Princeton is the 8,759th-most populous of the 16,079 U.S. towns and townships that have one and the 293rd-most populous of 454 in Maine.
Princeton is not ranked by income or the other survey measures: those rankings include places of 1,000 or more residents (2020 Census) with a reliable estimate.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 293rd | 454 |
Princeton's figures with every place in Maine (CSV)
Every place in Maine, sortable · Compare Princeton with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Princeton?
22 of the 57 figures for Princeton on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Princeton are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.