Census-designated place · Maine
South Berwick CDP, Maine
South Berwick CDP, census-designated place, in York County, Maine. South Berwick CDP had 3,825 residents in the 2020 Census, a full count; the ACS 2020-2024 5-year estimates put it at 3,381 (±640). GEOID 2369995.
Residents, 2020 Census
3,825
Census count or controlled total
ACS 2020-2024 estimate: 3,381 ±640
Median household income
$90,972
±$22,366 (90% margin)
Maine: $74,733
Median home value
$396,700
±$65,900 (90% margin)
Maine: $296,600
Median gross rent
$1,702
±$76 (90% margin)
Maine: $1,139
Where is South Berwick CDP and what county is it in?
South Berwick CDP is a census-designated place: an unincorporated community the Census Bureau draws for counting, with no city government of its own, in York County, Maine. It covers 2.7 square miles of land, 1,394 residents per square mile in 2020.
South Berwick CDP is in the Portland-South Portland, ME metropolitan statistical area, which takes in 3 counties (Census Bureau delineation, July 2023).
South Berwick CDP lies entirely within South Berwick, 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 South Berwick CDP, and is it growing?
The 2020 Census counted 3,825 residents in South Berwick CDP, a full count rather than a sample. The 2020-2024 American Community Survey, a sample, estimates 3,381 (±640).
The Census Bureau publishes yearly population estimates for incorporated places only; South Berwick CDP is a census-designated place, so its figures come from the ACS and the 2020 Census.
| Measure | South Berwick CDP | York County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 3,381 ±640 | 216,731 | – |
| Households | 1,459 ±299 | 91,413 | – |
| Average household size | 2.31 ±0.25 | 2.33 | – |
| Housing units | 1,533 ±288 | 115,091 | – |
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 South Berwick CDP?
The median resident of South Berwick CDP is 41.4 years old; 21.7% are under 18 and 15.6% are 65 or older. The largest group is non-Hispanic white residents at 90.6%, then non-Hispanic residents of two or more races at 6.1%.
| Measure | South Berwick CDP | York County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 41.4 ±6.2 | 45.3 | – |
| Under 18 years | 21.7% ±5.6 pts | 17.8% | – |
| 65 years and over | 15.6% ±5.0 pts | 22.3% | – |
| Male | 44.5% ±5.0 pts | 49.3% | – |
| Hispanic or Latino (any race) | 2.7% ±2.6 pts | 2.2% | – |
| White alone, not Hispanic | 90.6% ±5.2 pts | 90.1% | – |
| Black or African American alone, not Hispanic | 0.0% ±0.8 pts | 1.1% | – |
| Asian alone, not Hispanic | 0.6% ±1.0 pts | 1.1% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.8 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.8 pts | 0.0% | – |
| Two or more races, not Hispanic | 6.1% ±4.5 pts | 4.9% | – |
| Some other race alone, not Hispanic | 0.0% ±0.8 pts | 0.4% | – |
| Born outside the United States | 6.8% ±7.0 pts | 4.0% | – |
| Speak a language other than English at home (age 5+) | 8.2% ±7.5 pts | 5.7% | – |
| Civilian veterans (age 18+) | 7.9% ±4.5 pts | 8.7% | – |
| With a disability | 22.1% ±11.6 pts | 14.3% | – |
| No health insurance coverage | 5.5% ±3.5 pts | 4.8% | – |
| High school graduate or higher (age 25+) | 99.7% ±0.5 pts | 95.4% | – |
| Bachelor's degree or higher (age 25+) | 47.2% ±10.7 pts | 36.2% | – |
| Graduate or professional degree (age 25+) | 17.3% ±7.0 pts | 13.0% | – |
| Lived in the same house a year earlier | 89.7% ±7.2 pts | 90.6% | – |
| Moved from another state in the past year | 0.7% ±0.8 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 South Berwick CDP earn?
Half of South Berwick CDP's 1,459 households earn less than $90,972 a year (±$22,366), against $88,333 in York County and $74,733 in Maine. 4.8% of residents live below the poverty line.
| Measure | South Berwick CDP | York County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $90,972 ±$22,366 | $88,333 | – |
| Mean household income | $108,112 ±$18,561 | $110,468 | – |
| Per capita income | $47,311 ±$7,291 | $47,536 | – |
| People below the poverty line | 4.8% ±3.1 pts | 7.7% | – |
| Children under 18 below the poverty line | 2.2% ±3.7 pts | 9.0% | – |
| Households receiving SNAP | 4.4% ±3.1 pts | 8.1% | – |
| Households with a computer | 99.4% ±1.0 pts | 96.4% | – |
| Households with a broadband subscription | 95.8% ±5.5 pts | 92.7% | – |
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 South Berwick CDP?
Owners occupy 67.0% of South Berwick CDP's occupied homes and renters 33.0%. The median owner-occupied home is valued at $396,700 by its owner (±$65,900). The median renter pays $1,702 a month including utilities, and 40.0% of renters pay 35% or more of their income on rent.
| Measure | South Berwick CDP | York County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $396,700 ±$65,900 | $395,700 | – |
| Median gross rent | $1,702 ±$76 | $1,339 | – |
| Renters paying 35% or more of income on rent | 40.0% ±25.6 pts | 34.5% | – |
| Median monthly owner costs, with a mortgage | $2,083 ±$256 | $1,988 | – |
| Owner-occupied homes | 67.0% ±8.5 pts | 77.3% | – |
| Renter-occupied homes | 33.0% ±8.5 pts | 22.7% | – |
| Housing units | 1,533 ±288 | 115,091 | – |
| Homeowner vacancy rate | 1.4% ±2.3 pts | 0.8% | – |
| Rental vacancy rate | 4.0% ±6.1 pts | 5.2% | – |
| Single-family detached homes | 62.8% ±9.5 pts | 69.7% | – |
| Mobile homes | 1.2% ±1.6 pts | 6.1% | – |
| Built 2020 or later | 0.7% ±1.2 pts | 1.9% | – |
| Built 2010 to 2019 | 1.4% ±1.9 pts | 8.6% | – |
| Built 1939 or earlier | 29.0% ±9.7 pts | 19.9% | – |
| Households with no vehicle | 2.7% ±3.6 pts | 4.7% | – |
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 South Berwick CDP work and get to work?
79.8% of South Berwick CDP's workers drive alone and 13.9% work from home. The average trip to work takes 29.3 minutes.
| Measure | South Berwick CDP | York County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 75.0% ±6.8 pts | 65.0% | – |
| Unemployment rate | 4.6% ±3.8 pts | 3.4% | – |
| Drove alone to work | 79.8% ±10.4 pts | 72.0% | – |
| Carpooled | 4.4% ±5.2 pts | 7.4% | – |
| Public transportation | 0.0% ±1.4 pts | 0.5% | – |
| Walked | 0.8% ±1.4 pts | 2.2% | – |
| Worked from home | 13.9% ±9.0 pts | 16.8% | – |
| Mean travel time to work | 29.3 min ±6.2 | 27.7 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 South Berwick CDP?
1 census tract lies mostly in South Berwick CDP, and 1 more reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 350.02York County | 3,753 | $84,479 |
| Tract 350.01York County | 3,917 | $127,303 |
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 South Berwick CDP) · Census block assignment files
How does South Berwick CDP compare with other places in Maine?
South Berwick CDP ranks 78th 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) | 127th | 353 |
| Residents per square mile | 7th | 353 |
| Median household income | 78th | 349 |
| Per capita income | 91st | 353 |
| Median home value | 64th | 352 |
| Median gross rent | 20th | 301 |
| Poverty rate | 255th | 277 |
| Bachelor's degree or higher | 63rd | 352 |
| Median age | 274th | 353 |
| Owner-occupied share | 292nd | 353 |
| Work from home | 153rd | 275 |
| Travel time to work | 110th | 352 |
South Berwick CDP's figures with every place in Maine (CSV)
Every place in Maine, sortable · Compare South Berwick 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 South Berwick CDP?
22 of the 57 figures for South Berwick 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 South Berwick 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.