Town · Maine
Cooper, Maine
Cooper, town, in Washington County, Maine. Cooper had 169 residents on July 1, 2025 by the Census Bureau's estimate, down 0.6% since 2020; the 2020 Census counted 168 and the ACS 2020-2024 5-year estimates put it at 157 (±49). GEOID 2302914100.
Residents, July 2025 estimate
169
Census Bureau estimate (no margin published)
2020 Census count: 168 · ACS 2020-2024: 157 ±49
Median household income
$48,750
±$15,292 (90% margin)
Maine: $74,733
Median home value
$212,500
±$65,956 (90% margin)
Maine: $296,600
Median gross rent
not published
Maine: $1,139
Where is Cooper and what county is it in?
Cooper is a town in Washington County, Maine. It covers 30.7 square miles of land, 5 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 Cooper, and is it growing?
The Census Bureau estimates that 169 people lived in Cooper on July 1, 2025, down 0.6% since 2020, while Maine grew 3.8%. The 2020 Census counted 168 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 157 (±49).
| Measure | Cooper | Washington County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 157±49 | 31,331 | no clear change |
| Households | 80±28 | 14,187 | no clear change |
| Average household size | 1.96±0.37 | 2.14 | no clear change |
| Housing units | 166±41 | 21,726 | no clear change |
Cooper's population since 2000
From 145 in 2000 to 169 in 2025: up 16.6%. The 2000, 2010 and 2020 figures are census counts, each for Cooper 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 Cooper?
The median resident of Cooper is 46.5 years old; 16.6% are under 18 and 22.9% are 65 or older. The largest group is non-Hispanic white residents at 96.2%, then Hispanic or Latino residents (of any race) at 3.8%.
| Measure | Cooper | Washington County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 46.5±9.1 | 48.6 | −13.1 |
| Under 18 years | 16.6%±5.7 pts | 18.5% | – |
| 65 years and over | 22.9%±10.1 pts | 26.3% | – |
| Male | 45.2%±9.3 pts | 49.3% | – |
| Hispanic or Latino (any race) | 3.8%±4.9 pts | 2.5% | – |
| White alone, not Hispanic | 96.2%±4.9 pts | 87.6% | no clear change |
| Black or African American alone, not Hispanic | 0.0%±16.0 pts | 0.7% | – |
| Asian alone, not Hispanic | 0.0%±16.0 pts | 0.3% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±16.0 pts | 4.4% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±16.0 pts | 0.1% | – |
| Two or more races, not Hispanic | 0.0%±16.0 pts | 4.1% | – |
| Some other race alone, not Hispanic | 0.0%±16.0 pts | 0.2% | – |
| Born outside the United States | 16.6%±12.1 pts | 3.7% | – |
| Speak a language other than English at home (age 5+) | 10.2%±7.0 pts | 5.6% | – |
| Civilian veterans (age 18+) | 30.5%±9.0 pts | 11.7% | – |
| With a disability | 19.1%±9.0 pts | 22.6% | – |
| No health insurance coverage | 4.5%±3.4 pts | 9.1% | – |
| High school graduate or higher (age 25+) | 97.6%±3.5 pts | 91.1% | – |
| Bachelor's degree or higher (age 25+) | 22.2%±11.2 pts | 24.7% | no clear change |
| Graduate or professional degree (age 25+) | 5.6%±5.7 pts | 9.0% | – |
| Lived in the same house a year earlier | 93.0%±6.6 pts | 89.3% | – |
| Moved from another state in the past year | 0.0%±16.0 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 Cooper earn?
Half of Cooper's 80 households earn less than $48,750 a year (±$15,292), against $56,024 in Washington County and $74,733 in Maine. In 2015-2019 it was $61,535 in 2024 dollars; the margins of error cannot tell the two periods apart.
| Measure | Cooper | Washington County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $48,750±$15,292 | $56,024 | no clear change |
| Mean household income | $63,391±$17,139 | $74,471 | – |
| Per capita income | $33,954±$7,141 | $33,745 | no clear change |
| People below the poverty line | 20.4%±17.4 pts | 17.1% | – |
| Children under 18 below the poverty line | 26.9%±32.7 pts | 18.9% | – |
| Households receiving SNAP | 23.8%±15.0 pts | 18.8% | – |
| Households with a computer | 97.5%±6.0 pts | 91.6% | – |
| Households with a broadband subscription | 85.0%±14.2 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 Cooper?
Owners occupy 95.0% of Cooper's occupied homes and renters 5.0%. The median owner-occupied home is valued at $212,500 by its owner (±$65,956).
| Measure | Cooper | Washington County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $212,500±$65,956 | $161,800 | no clear change |
| Median monthly owner costs, with a mortgage | $1,208±$376 | $1,275 | – |
| Owner-occupied homes | 95.0%±6.7 pts | 79.7% | no clear change |
| Renter-occupied homes | 5.0%±6.7 pts | 20.3% | – |
| Housing units | 166±41 | 21,726 | no clear change |
| Homeowner vacancy rate | 5.0%±8.2 pts | 0.8% | – |
| Rental vacancy rate | 0.0%±100.0 pts | 7.7% | – |
| Single-family detached homes | 88.6%±8.6 pts | 81.4% | – |
| Mobile homes | 9.6%±7.7 pts | 11.2% | – |
| Built 2020 or later | 0.6%±1.8 pts | 1.6% | – |
| Built 2010 to 2019 | 3.0%±2.7 pts | 5.5% | – |
| Built 1939 or earlier | 13.9%±8.1 pts | 27.1% | – |
| Households with no vehicle | 0.0%±28.4 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 many new homes is Cooper building?
Builders took permits for 7 new housing units in Cooper in 2025 (7 in single-family houses), 41.4 per 1,000 residents against 4.9 across Maine.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Cooper work and get to work?
75.7% of Cooper's workers drive alone. The average trip to work takes 43.8 minutes.
| Measure | Cooper | Washington County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 61.8%±13.9 pts | 52.9% | – |
| Unemployment rate | 8.6%±13.3 pts | 6.3% | – |
| Drove alone to work | 75.7%±12.3 pts | 75.6% | – |
| Carpooled | 8.1%±7.3 pts | 9.1% | – |
| Public transportation | 0.0%±30.1 pts | 0.5% | – |
| Walked | 0.0%±30.1 pts | 4.2% | – |
| Worked from home | 13.5%±11.7 pts | 9.7% | – |
| Mean travel time to work | 43.8 min±10.7 | 21.6 min | +14.4 min |
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 Cooper?
No census tract lies mostly in Cooper; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 9559Washington County | 2,559 | $54,833 |
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 Cooper) · Census block assignment files
How does Cooper compare with other places in Maine?
By the Census Bureau's July 2025 estimates, Cooper is the 12,780th-most populous of the 16,079 U.S. towns and townships that have one and the 400th-most populous of 454 in Maine.
Cooper 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 | 400th | 454 |
Cooper's figures with every place in Maine (CSV)
Every place in Maine, sortable · Compare Cooper 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 Cooper?
26 of the 55 figures for Cooper 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 Cooper 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.