Town · Maine
Sumner, Maine
Sumner, town, in Oxford County, Maine. Sumner had 1,006 residents on July 1, 2025 by the Census Bureau's estimate, up 1.1% since 2020; the 2020 Census counted 994 and the ACS 2020-2024 5-year estimates put it at 845 (±193). GEOID 2301775035.
Residents, July 2025 estimate
1,006
Census Bureau estimate (no margin published)
2020 Census count: 994 · ACS 2020-2024: 845 ±193
Median household income
$57,750
±$19,486 (90% margin)
Maine: $74,733
Median home value
$150,000
±$73,090 (90% margin)
Maine: $296,600
Median gross rent
not published
Maine: $1,139
Where is Sumner and what county is it in?
Sumner is a town in Oxford County, Maine. It covers 44.3 square miles of land, 22 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 Sumner, and is it growing?
The Census Bureau estimates that 1,006 people lived in Sumner on July 1, 2025, up 1.1% since 2020, slower than Maine (+3.8%). The 2020 Census counted 994 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 845 (±193).
| Measure | Sumner | Oxford County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 845±193 | 59,255 | no clear change |
| Households | 371±79 | 24,140 | no clear change |
| Average household size | 2.28±0.25 | 2.42 | −0.84 |
| Housing units | 605±95 | 36,855 | no clear change |
Sumner's population since 2000
From 854 in 2000 to 1,006 in 2025: up 17.8%. The 2000, 2010 and 2020 figures are census counts, each for Sumner 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 Sumner?
The median resident of Sumner is 56.1 years old; 17.2% are under 18 and 29.7% are 65 or older. The largest group is non-Hispanic white residents at 93.5%, then non-Hispanic residents of two or more races at 4.5%.
| Measure | Sumner | Oxford County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 56.1±8.4 | 48.2 | +15.5 |
| Under 18 years | 17.2%±7.2 pts | 17.6% | – |
| 65 years and over | 29.7%±11.0 pts | 23.9% | – |
| Male | 58.2%±5.0 pts | 50.0% | – |
| Hispanic or Latino (any race) | 1.2%±1.5 pts | 1.7% | – |
| White alone, not Hispanic | 93.5%±5.2 pts | 92.2% | no clear change |
| Black or African American alone, not Hispanic | 0.8%±1.4 pts | 0.3% | – |
| Asian alone, not Hispanic | 0.0%±3.2 pts | 0.7% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±3.2 pts | 0.2% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±3.2 pts | 0.0% | – |
| Two or more races, not Hispanic | 4.5%±4.2 pts | 4.5% | – |
| Some other race alone, not Hispanic | 0.0%±3.2 pts | 0.4% | – |
| Born outside the United States | 0.2%±0.5 pts | 1.4% | – |
| Speak a language other than English at home (age 5+) | 0.3%±0.5 pts | 2.1% | – |
| Civilian veterans (age 18+) | 9.0%±4.5 pts | 9.4% | – |
| With a disability | 13.8%±4.3 pts | 18.6% | – |
| No health insurance coverage | 10.4%±11.0 pts | 8.6% | – |
| High school graduate or higher (age 25+) | 96.2%±2.5 pts | 92.6% | – |
| Bachelor's degree or higher (age 25+) | 15.4%±6.2 pts | 24.0% | no clear change |
| Graduate or professional degree (age 25+) | 3.0%±1.9 pts | 8.1% | – |
| Lived in the same house a year earlier | 94.7%±4.6 pts | 91.0% | – |
| Moved from another state in the past year | 2.3%±2.4 pts | 2.5% | – |
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 Sumner earn?
Half of Sumner's 371 households earn less than $57,750 a year (±$19,486), against $60,173 in Oxford County and $74,733 in Maine. In 2015-2019 it was $63,458 in 2024 dollars; the margins of error cannot tell the two periods apart. 5.8% of residents live below the poverty line.
| Measure | Sumner | Oxford County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $57,750±$19,486 | $60,173 | no clear change |
| Mean household income | $71,484±$12,616 | $81,916 | – |
| Per capita income | $31,408±$5,925 | $35,412 | no clear change |
| People below the poverty line | 5.8%±3.7 pts | 13.8% | – |
| Children under 18 below the poverty line | 9.7%±9.6 pts | 19.1% | – |
| Households receiving SNAP | 4.3%±3.4 pts | 15.7% | – |
| Households with a computer | 96.5%±3.5 pts | 92.3% | – |
| Households with a broadband subscription | 90.0%±5.4 pts | 87.5% | – |
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 Sumner?
Owners occupy 91.1% of Sumner's occupied homes and renters 8.9%. The median owner-occupied home is valued at $150,000 by its owner (±$73,090).
| Measure | Sumner | Oxford County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $150,000±$73,090 | $217,300 | no clear change |
| Renters paying 35% or more of income on rent | 28.6%±63.9 pts | 40.4% | – |
| Median monthly owner costs, with a mortgage | $1,339±$753 | $1,442 | – |
| Owner-occupied homes | 91.1%±6.8 pts | 80.6% | no clear change |
| Renter-occupied homes | 8.9%±6.8 pts | 19.4% | – |
| Housing units | 605±95 | 36,855 | no clear change |
| Homeowner vacancy rate | 0.0%±7.8 pts | 0.8% | – |
| Rental vacancy rate | 0.0%±47.5 pts | 11.3% | – |
| Single-family detached homes | 77.0%±7.4 pts | 75.5% | – |
| Mobile homes | 20.2%±6.9 pts | 11.0% | – |
| Built 2020 or later | 0.7%±0.9 pts | 1.3% | – |
| Built 2010 to 2019 | 5.3%±2.9 pts | 6.5% | – |
| Built 1939 or earlier | 22.1%±9.7 pts | 22.9% | – |
| Households with no vehicle | 3.5%±3.6 pts | 6.9% | – |
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 Sumner work and get to work?
74.5% of Sumner's workers drive alone and 18.5% work from home. The average trip to work takes 42.2 minutes.
| Measure | Sumner | Oxford County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 53.5%±9.2 pts | 56.4% | – |
| Unemployment rate | 2.4%±2.8 pts | 4.3% | – |
| Drove alone to work | 74.5%±8.9 pts | 73.8% | – |
| Carpooled | 1.9%±2.1 pts | 9.4% | – |
| Public transportation | 0.0%±7.1 pts | 0.0% | – |
| Walked | 3.2%±3.0 pts | 2.2% | – |
| Worked from home | 18.5%±8.6 pts | 13.6% | +14.0 pts |
| Mean travel time to work | 42.2 min±5.0 | 28.9 min | +6.9 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 Sumner?
No census tract lies mostly in Sumner; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 9658Oxford County | 3,660 | $66,167 |
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 Sumner) · Census block assignment files
How does Sumner compare with other places in Maine?
By the Census Bureau's July 2025 estimates, Sumner is the 7,642nd-most populous of the 16,079 U.S. towns and townships that have one and the 255th-most populous of 454 in Maine.
Sumner 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 | 255th | 454 |
Sumner's figures with every place in Maine (CSV)
Every place in Maine, sortable · Compare Sumner 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 Sumner?
23 of the 56 figures for Sumner 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 Sumner 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.