Town · Maine
Topsham, Maine
Topsham, town, in Sagadahoc County, Maine. Topsham had 9,982 residents on July 1, 2025 by the Census Bureau's estimate, up 4.4% since 2020; the 2020 Census counted 9,560 and the ACS 2020-2024 5-year estimates put it at 9,706 (±19). GEOID 2302376960.
Residents, July 2025 estimate
9,982
Census Bureau estimate (no margin published)
2020 Census count: 9,560 · ACS 2020-2024: 9,706 ±19
Median household income
$91,028
±$9,915 (90% margin)
Maine: $74,733
Median home value
$360,800
±$19,993 (90% margin)
Maine: $296,600
Median gross rent
$1,355
±$642 (90% margin)
Maine: $1,139
Where is Topsham and what county is it in?
Topsham is a town in Sagadahoc County, Maine. It covers 32.2 square miles of land, 297 residents per square mile in 2020.
One place lies inside Topsham: Topsham (CDP, 6,623 in 2020).
Topsham is in the Portland-South Portland, ME metropolitan statistical area, which takes in 3 counties (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 Topsham, and is it growing?
The Census Bureau estimates that 9,982 people lived in Topsham on July 1, 2025, up 4.4% since 2020, faster than Maine (+3.8%). The 2020 Census counted 9,560 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 9,706 (±19).
| Measure | Topsham | Sagadahoc County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 9,706±19 | 37,285 | +896 |
| Households | 4,011±241 | 16,446 | no clear change |
| Average household size | 2.38±0.14 | 2.25 | no clear change |
| Housing units | 4,313±233 | 19,239 | no clear change |
Topsham's population since 2000
From 9,100 in 2000 to 9,982 in 2025: up 9.7%. The 2000, 2010 and 2020 figures are census counts, each for Topsham 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 Topsham?
The median resident of Topsham is 44.7 years old; 19.9% are under 18 and 24.4% are 65 or older. The largest group is non-Hispanic white residents at 92.4%, then Hispanic or Latino residents (of any race) at 3.1%. 3.2% of residents were born outside the United States.
| Measure | Topsham | Sagadahoc County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 44.7±4.0 | 47.3 | no clear change |
| Under 18 years | 19.9%±2.9 pts | 17.6% | – |
| 65 years and over | 24.4%±3.1 pts | 24.6% | – |
| Male | 47.4%±2.7 pts | 49.0% | – |
| Hispanic or Latino (any race) | 3.1%±1.8 pts | 2.0% | no clear change |
| White alone, not Hispanic | 92.4%±2.2 pts | 92.0% | no clear change |
| Black or African American alone, not Hispanic | 0.9%±0.9 pts | 0.5% | – |
| Asian alone, not Hispanic | 0.5%±0.4 pts | 0.7% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±0.3 pts | 0.0% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.3 pts | 0.0% | – |
| Two or more races, not Hispanic | 2.4%±1.2 pts | 4.4% | – |
| Some other race alone, not Hispanic | 0.7%±0.8 pts | 0.4% | – |
| Born outside the United States | 3.2%±1.3 pts | 2.5% | no clear change |
| Speak a language other than English at home (age 5+) | 3.1%±1.1 pts | 2.8% | – |
| Civilian veterans (age 18+) | 10.5%±2.1 pts | 10.7% | – |
| With a disability | 16.8%±2.6 pts | 13.7% | – |
| No health insurance coverage | 5.6%±2.7 pts | 5.3% | no clear change |
| High school graduate or higher (age 25+) | 96.9%±1.2 pts | 95.7% | – |
| Bachelor's degree or higher (age 25+) | 50.0%±4.6 pts | 44.2% | no clear change |
| Graduate or professional degree (age 25+) | 22.2%±3.6 pts | 17.9% | – |
| Lived in the same house a year earlier | 86.6%±5.8 pts | 88.8% | – |
| Moved from another state in the past year | 6.4%±3.3 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 earn?
Half of Topsham's 4,011 households earn less than $91,028 a year (±$9,915), against $87,806 in Sagadahoc County and $74,733 in Maine. In 2015-2019 it was $92,263 in 2024 dollars; the margins of error cannot tell the two periods apart. 6.4% of residents live below the poverty line.
| Measure | Topsham | Sagadahoc County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $91,028±$9,915 | $87,806 | no clear change |
| Mean household income | $122,042±$14,167 | $107,102 | – |
| Per capita income | $51,713±$5,611 | $47,808 | no clear change |
| People below the poverty line | 6.4%±3.0 pts | 10.0% | no clear change |
| Children under 18 below the poverty line | 9.1%±8.3 pts | 10.3% | – |
| Households receiving SNAP | 10.0%±3.8 pts | 8.7% | – |
| Households with a computer | 94.3%±3.3 pts | 96.7% | – |
| Households with a broadband subscription | 94.2%±3.2 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?
Owners occupy 78.9% of Topsham's occupied homes and renters 21.1%. The median owner-occupied home is valued at $360,800 by its owner (±$19,993). The median renter pays $1,355 a month including utilities, and 25.3% of renters pay 35% or more of their income on rent.
| Measure | Topsham | Sagadahoc County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $360,800±$19,993 | $333,300 | +$75,279 |
| Median gross rent | $1,355±$642 | $1,098 | no clear change |
| Renters paying 35% or more of income on rent | 25.3%±15.7 pts | 32.8% | no clear change |
| Median monthly owner costs, with a mortgage | $1,833±$97 | $1,817 | – |
| Owner-occupied homes | 78.9%±5.6 pts | 77.8% | no clear change |
| Renter-occupied homes | 21.1%±5.6 pts | 22.2% | – |
| Housing units | 4,313±233 | 19,239 | no clear change |
| Homeowner vacancy rate | 0.0%±0.8 pts | 0.5% | – |
| Rental vacancy rate | 4.2%±6.4 pts | 5.5% | – |
| Single-family detached homes | 74.0%±4.1 pts | 75.4% | – |
| Mobile homes | 6.8%±2.9 pts | 7.7% | – |
| Built 2020 or later | 0.5%±0.6 pts | 1.1% | – |
| Built 2010 to 2019 | 7.6%±3.1 pts | 7.8% | – |
| Built 1939 or earlier | 12.4%±3.7 pts | 27.1% | – |
| Households with no vehicle | 4.8%±2.8 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 many new homes is Topsham building?
Builders took permits for 47 new housing units in Topsham in 2025 (25 in single-family houses), 4.7 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 Topsham work and get to work?
68.1% of Topsham's workers drive alone and 17.2% work from home. The average trip to work takes 23.6 minutes. The unemployment rate in 2020-2024 averaged 4.3%.
| Measure | Topsham | Sagadahoc County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 63.5%±3.5 pts | 62.7% | – |
| Unemployment rate | 4.3%±2.3 pts | 4.6% | – |
| Drove alone to work | 68.1%±7.7 pts | 71.2% | – |
| Carpooled | 11.6%±6.1 pts | 7.6% | – |
| Public transportation | 0.5%±0.8 pts | 0.3% | – |
| Walked | 1.0%±1.1 pts | 2.8% | – |
| Worked from home | 17.2%±4.3 pts | 16.9% | +12.9 pts |
| Mean travel time to work | 23.6 min±2.6 | 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?
2 census tracts lie mostly in Topsham (2020 census blocks). Their median household incomes run from $88,274 (Tract 9703.02) to $98,627 (Tract 9703.01).
| 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) · Census block assignment files
How does Topsham compare with other places in Maine?
By the Census Bureau's July 2025 estimates, Topsham is the 1,234th-most populous of the 16,079 U.S. towns and townships that have one and the 12th-most populous of 454 in Maine.
Topsham ranks 77th 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 | 12th | 454 |
| Growth 2020-2025 (PEP) | 103rd | 273 |
| Residents per square mile | 102nd | 353 |
| Median household income | 77th | 349 |
| Per capita income | 59th | 353 |
| Median home value | 79th | 352 |
| Median gross rent | 60th | 301 |
| Poverty rate | 224th | 277 |
| Bachelor's degree or higher | 48th | 352 |
| Median age | 206th | 353 |
| Owner-occupied share | 212th | 353 |
| Work from home | 113th | 275 |
| Travel time to work | 207th | 352 |
Topsham's figures with every place in Maine (CSV)
Every place in Maine, sortable · Compare Topsham 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?
11 of the 57 figures for Topsham 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 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.