Town · Maine
Winthrop, Maine
Winthrop, town, in Kennebec County, Maine. Winthrop had 6,158 residents on July 1, 2025 by the Census Bureau's estimate, up 0.6% since 2020; the 2020 Census counted 6,121 and the ACS 2020-2024 5-year estimates put it at 6,191 (±23). GEOID 2301186970.
Residents, July 2025 estimate
6,158
Census Bureau estimate (no margin published)
2020 Census count: 6,121 · ACS 2020-2024: 6,191 ±23
Median household income
$86,470
±$3,802 (90% margin)
Maine: $74,733
Median home value
$294,800
±$41,097 (90% margin)
Maine: $296,600
Median gross rent
$892
±$319 (90% margin)
Maine: $1,139
Where is Winthrop and what county is it in?
Winthrop is a town in Kennebec County, Maine. It covers 31.2 square miles of land, 196 residents per square mile in 2020.
One place lies inside Winthrop: Winthrop (CDP, 2,666 in 2020).
Winthrop is in the Augusta-Waterville, ME micropolitan statistical area (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Winthrop, and is it growing?
The Census Bureau estimates that 6,158 people lived in Winthrop on July 1, 2025, up 0.6% since 2020, slower than Maine (+3.8%). The 2020 Census counted 6,121 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 6,191 (±23).
| Measure | Winthrop | Kennebec County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 6,191±23 | 126,808 | +208 |
| Households | 2,522±290 | 54,312 | no clear change |
| Average household size | 2.42±0.28 | 2.25 | no clear change |
| Housing units | 3,354±311 | 63,521 | no clear change |
Winthrop's population since 2000
From 6,232 in 2000 to 6,158 in 2025: down 1.2%. The 2000, 2010 and 2020 figures are census counts, each for Winthrop 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 Winthrop?
The median resident of Winthrop is 43.6 years old; 22.9% are under 18 and 23.4% are 65 or older. The largest group is non-Hispanic white residents at 91.0%, then non-Hispanic residents of two or more races at 5.4%.
| Measure | Winthrop | Kennebec County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 43.6±5.3 | 43.7 | −7.4 |
| Under 18 years | 22.9%±6.0 pts | 18.7% | – |
| 65 years and over | 23.4%±5.4 pts | 21.1% | – |
| Male | 45.5%±4.4 pts | 48.9% | – |
| Hispanic or Latino (any race) | 0.5%±0.6 pts | 2.3% | – |
| White alone, not Hispanic | 91.0%±3.4 pts | 91.8% | no clear change |
| Black or African American alone, not Hispanic | 1.7%±1.8 pts | 0.9% | – |
| Asian alone, not Hispanic | 0.5%±0.6 pts | 0.9% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.2%±0.3 pts | 0.2% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.4 pts | 0.0% | – |
| Two or more races, not Hispanic | 5.4%±2.8 pts | 3.7% | – |
| Some other race alone, not Hispanic | 0.6%±1.3 pts | 0.4% | – |
| Born outside the United States | 2.0%±1.8 pts | 2.4% | – |
| Speak a language other than English at home (age 5+) | 3.0%±2.2 pts | 4.8% | – |
| Civilian veterans (age 18+) | 8.9%±3.1 pts | 9.5% | – |
| With a disability | 14.0%±3.5 pts | 16.9% | – |
| No health insurance coverage | 4.1%±2.8 pts | 5.8% | – |
| High school graduate or higher (age 25+) | 96.2%±1.7 pts | 94.8% | – |
| Bachelor's degree or higher (age 25+) | 40.0%±5.9 pts | 31.9% | no clear change |
| Graduate or professional degree (age 25+) | 9.6%±3.5 pts | 12.2% | – |
| Lived in the same house a year earlier | 82.9%±9.6 pts | 88.0% | – |
| Moved from another state in the past year | 3.3%±3.1 pts | 1.9% | – |
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 Winthrop earn?
Half of Winthrop's 2,522 households earn less than $86,470 a year (±$3,802), against $69,077 in Kennebec County and $74,733 in Maine. In 2015-2019 it was $87,731 in 2024 dollars; the margins of error cannot tell the two periods apart.
| Measure | Winthrop | Kennebec County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $86,470±$3,802 | $69,077 | no clear change |
| Mean household income | $97,349±$8,993 | $88,742 | – |
| Per capita income | $39,714±$6,105 | $38,597 | no clear change |
| People below the poverty line | 12.9%±9.3 pts | 11.6% | – |
| Children under 18 below the poverty line | 30.2%±26.0 pts | 15.1% | – |
| Households receiving SNAP | 5.9%±3.4 pts | 13.6% | – |
| Households with a computer | 97.1%±3.2 pts | 95.0% | – |
| Households with a broadband subscription | 95.6%±3.4 pts | 91.1% | – |
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 Winthrop?
Owners occupy 92.5% of Winthrop's occupied homes and renters 7.5%. The median owner-occupied home is valued at $294,800 by its owner (±$41,097). The median renter pays $892 a month including utilities, and 44.9% of renters pay 35% or more of their income on rent.
| Measure | Winthrop | Kennebec County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $294,800±$41,097 | $238,200 | no clear change |
| Median gross rent | $892±$319 | $992 | no clear change |
| Renters paying 35% or more of income on rent | 44.9%±20.0 pts | 38.5% | no clear change |
| Median monthly owner costs, with a mortgage | $1,781±$283 | $1,499 | – |
| Owner-occupied homes | 92.5%±3.3 pts | 73.7% | +23.6 pts |
| Renter-occupied homes | 7.5%±3.3 pts | 26.3% | – |
| Housing units | 3,354±311 | 63,521 | no clear change |
| Homeowner vacancy rate | 0.0%±1.2 pts | 0.9% | – |
| Rental vacancy rate | 0.0%±13.4 pts | 1.8% | – |
| Single-family detached homes | 80.9%±5.8 pts | 67.7% | – |
| Mobile homes | 7.8%±3.9 pts | 9.9% | – |
| Built 2020 or later | 1.6%±2.2 pts | 1.0% | – |
| Built 2010 to 2019 | 3.6%±2.8 pts | 5.7% | – |
| Built 1939 or earlier | 24.2%±6.3 pts | 22.5% | – |
| Households with no vehicle | 3.9%±2.7 pts | 7.5% | – |
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 Winthrop building?
Builders took permits for 9 new housing units in Winthrop in 2025 (9 in single-family houses; the permit office reported 11 of 12 months), 1.5 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 Winthrop work and get to work?
71.5% of Winthrop's workers drive alone and 23.1% work from home. The average trip to work takes 34.6 minutes.
| Measure | Winthrop | Kennebec County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 59.2%±4.9 pts | 60.1% | – |
| Unemployment rate | 3.1%±2.6 pts | 3.9% | – |
| Drove alone to work | 71.5%±6.4 pts | 73.7% | – |
| Carpooled | 3.6%±3.2 pts | 6.8% | – |
| Public transportation | 0.0%±1.0 pts | 0.2% | – |
| Walked | 1.0%±1.2 pts | 2.4% | – |
| Worked from home | 23.1%±6.7 pts | 15.3% | +14.3 pts |
| Mean travel time to work | 34.6 min±8.3 | 25.4 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 Winthrop?
2 census tracts lie mostly in Winthrop (2020 census blocks). Their median household incomes run from $78,173 (Tract 140.01) to $87,474 (Tract 140.02).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 140.01Kennebec County | 4,038 | $78,173 |
| Tract 140.02Kennebec County | 2,153 | $87,474 |
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 Winthrop) · Census block assignment files
How does Winthrop compare with other places in Maine?
By the Census Bureau's July 2025 estimates, Winthrop is the 1,936th-most populous of the 16,079 U.S. towns and townships that have one and the 32nd-most populous of 454 in Maine.
Winthrop ranks 101st of 349 places in Maine with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 32nd | 454 |
| Growth 2020-2025 (PEP) | 225th | 273 |
| Residents per square mile | 124th | 353 |
| Median household income | 101st | 349 |
| Per capita income | 173rd | 353 |
| Median home value | 135th | 352 |
| Median gross rent | 218th | 301 |
| Bachelor's degree or higher | 100th | 352 |
| Median age | 223rd | 353 |
| Owner-occupied share | 32nd | 353 |
| Work from home | 38th | 275 |
| Travel time to work | 30th | 352 |
Winthrop's figures with every place in Maine (CSV)
Every place in Maine, sortable · Compare Winthrop 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 Winthrop?
21 of the 57 figures for Winthrop 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 Winthrop 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.