Census-designated place · Maine
Topsham CDP, Maine
Topsham CDP, census-designated place, in Sagadahoc County, Maine. Topsham CDP had 7,271 people in the ACS 2020-2024 5-year estimates (±483). GEOID 2376925.
Residents, 2020-2024
7,271
±483 (90% margin)
2020 Census count: 6,623
Median household income
$100,024
±$18,119 (90% margin)
Maine: $74,733
Median home value
$388,500
±$24,075 (90% margin)
Maine: $296,600
Median gross rent
$1,491
±$1,039 (90% margin)
Maine: $1,139
Where is Topsham CDP and what county is it in?
Topsham CDP is a census-designated place: an unincorporated community the Census Bureau draws for counting, with no city government of its own, in Sagadahoc County, Maine. It covers 11.0 square miles of land, 601 residents per square mile in 2020.
Topsham CDP is in the Portland-South Portland, ME metropolitan statistical area, which takes in 3 counties (Census Bureau delineation, July 2023).
Topsham CDP lies entirely within Topsham, a town with its own local government (2020 census blocks).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Topsham CDP, and is it growing?
The 2020-2024 American Community Survey puts Topsham CDP's population at 7,271 (±483). The 2020 Census counted 6,623 residents.
The Census Bureau publishes yearly population estimates for incorporated places only; Topsham CDP is a census-designated place, so its figures come from the ACS and the 2020 Census.
| Measure | Topsham CDP | Sagadahoc County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 7,271 ±483 | 37,285 | +1,049 |
| Households | 3,015 ±229 | 16,446 | no clear change |
| Average household size | 2.36 ±0.18 | 2.25 | no clear change |
| Housing units | 3,157 ±226 | 19,239 | no clear change |
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 Topsham CDP?
The median resident of Topsham CDP is 45.6 years old; 20.9% are under 18 and 25.6% are 65 or older. The largest group is non-Hispanic white residents at 94.9%, then Hispanic or Latino residents (of any race) at 2.3%. 2.3% of residents were born outside the United States.
| Measure | Topsham CDP | Sagadahoc County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 45.6 ±4.9 | 47.3 | no clear change |
| Under 18 years | 20.9% ±3.6 pts | 17.6% | – |
| 65 years and over | 25.6% ±3.7 pts | 24.6% | – |
| Male | 47.4% ±3.2 pts | 49.0% | – |
| Hispanic or Latino (any race) | 2.3% ±1.8 pts | 2.0% | – |
| White alone, not Hispanic | 94.9% ±2.1 pts | 92.0% | no clear change |
| Black or African American alone, not Hispanic | 0.0% ±0.4 pts | 0.5% | – |
| Asian alone, not Hispanic | 0.7% ±0.6 pts | 0.7% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.4 pts | 0.0% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.4 pts | 0.0% | – |
| Two or more races, not Hispanic | 1.7% ±1.2 pts | 4.4% | – |
| Some other race alone, not Hispanic | 0.5% ±0.7 pts | 0.4% | – |
| Born outside the United States | 2.3% ±1.3 pts | 2.5% | no clear change |
| Speak a language other than English at home (age 5+) | 3.4% ±1.4 pts | 2.8% | – |
| Civilian veterans (age 18+) | 11.5% ±3.0 pts | 10.7% | – |
| With a disability | 16.4% ±3.4 pts | 13.7% | – |
| No health insurance coverage | 6.7% ±3.4 pts | 5.3% | no clear change |
| High school graduate or higher (age 25+) | 97.0% ±1.4 pts | 95.7% | – |
| Bachelor's degree or higher (age 25+) | 52.0% ±6.6 pts | 44.2% | +8.7 pts |
| Graduate or professional degree (age 25+) | 25.6% ±4.9 pts | 17.9% | – |
| Lived in the same house a year earlier | 83.9% ±7.2 pts | 88.8% | – |
| Moved from another state in the past year | 8.5% ±4.3 pts | 4.2% | – |
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 Topsham CDP earn?
Half of Topsham CDP's 3,015 households earn less than $100,024 a year (±$18,119), against $87,806 in Sagadahoc County and $74,733 in Maine. In 2015-2019 it was $86,691 in 2024 dollars; the margins of error cannot tell the two periods apart. 5.7% of residents live below the poverty line.
| Measure | Topsham CDP | Sagadahoc County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $100,024 ±$18,119 | $87,806 | no clear change |
| Mean household income | $131,412 ±$18,057 | $107,102 | – |
| Per capita income | $55,388 ±$7,577 | $47,808 | +$10,110 |
| People below the poverty line | 5.7% ±3.3 pts | 10.0% | −6.2 pts |
| Children under 18 below the poverty line | 9.4% ±10.4 pts | 10.3% | – |
| Households receiving SNAP | 9.8% ±4.9 pts | 8.7% | – |
| Households with a computer | 94.7% ±3.4 pts | 96.7% | – |
| Households with a broadband subscription | 94.7% ±3.3 pts | 93.9% | – |
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 Topsham CDP?
Owners occupy 75.0% of Topsham CDP's occupied homes and renters 25.0%. The median owner-occupied home is valued at $388,500 by its owner (±$24,075).
| Measure | Topsham CDP | Sagadahoc County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $388,500 ±$24,075 | $333,300 | +$104,948 |
| Median gross rent | $1,491 ±$1,039 | $1,098 | – |
| Renters paying 35% or more of income on rent | 21.1% ±16.4 pts | 32.8% | – |
| Median monthly owner costs, with a mortgage | $1,836 ±$110 | $1,817 | – |
| Owner-occupied homes | 75.0% ±6.2 pts | 77.8% | no clear change |
| Renter-occupied homes | 25.0% ±6.2 pts | 22.2% | – |
| Housing units | 3,157 ±226 | 19,239 | no clear change |
| Homeowner vacancy rate | 0.0% ±1.2 pts | 0.5% | – |
| Rental vacancy rate | 4.7% ±7.3 pts | 5.5% | – |
| Single-family detached homes | 73.7% ±5.7 pts | 75.4% | – |
| Mobile homes | 1.6% ±2.1 pts | 7.7% | – |
| Built 2020 or later | 0.2% ±0.3 pts | 1.1% | – |
| Built 2010 to 2019 | 7.6% ±3.3 pts | 7.8% | – |
| Built 1939 or earlier | 8.2% ±2.7 pts | 27.1% | – |
| Households with no vehicle | 4.9% ±3.3 pts | 5.1% | – |
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 Topsham CDP work and get to work?
63.2% of Topsham CDP's workers drive alone and 18.2% work from home. The average trip to work takes 23.8 minutes. The unemployment rate in 2020-2024 averaged 4.9%.
| Measure | Topsham CDP | Sagadahoc County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 61.3% ±5.0 pts | 62.7% | – |
| Unemployment rate | 4.9% ±3.0 pts | 4.6% | – |
| Drove alone to work | 63.2% ±9.0 pts | 71.2% | – |
| Carpooled | 15.9% ±8.3 pts | 7.6% | – |
| Public transportation | 0.0% ±0.8 pts | 0.3% | – |
| Walked | 1.0% ±1.2 pts | 2.8% | – |
| Worked from home | 18.2% ±5.0 pts | 16.9% | +12.9 pts |
| Mean travel time to work | 23.8 min ±3.6 | 25.8 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 Topsham CDP?
1 census tract lies mostly in Topsham CDP, and 1 more reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 9703.02Sagadahoc County | 5,058 | $88,274 |
| Tract 9703.01Sagadahoc County | 4,648 | $98,627 |
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 Topsham CDP) · Census block assignment files
How does Topsham CDP compare with other places in Maine?
Topsham CDP ranks 46th of 349 places in Maine with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population (ACS 2020-2024) | 48th | 353 |
| Residents per square mile | 52nd | 353 |
| Median household income | 46th | 349 |
| Per capita income | 41st | 353 |
| Median home value | 68th | 352 |
| Poverty rate | 241st | 277 |
| Bachelor's degree or higher | 36th | 352 |
| Median age | 192nd | 353 |
| Owner-occupied share | 242nd | 353 |
| Work from home | 100th | 275 |
| Travel time to work | 203rd | 352 |
Topsham CDP's figures with every place in Maine (CSV)
Every place in Maine, sortable · Compare Topsham CDP 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 Topsham CDP?
17 of the 57 figures for Topsham CDP 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 Topsham CDP 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.