Town · New Hampshire
Northumberland, New Hampshire
Northumberland, town, in Coos County, New Hampshire. Northumberland had 2,096 residents on July 1, 2025 by the Census Bureau's estimate, down 1.6% since 2020; the 2020 Census counted 2,126 and the ACS 2020-2024 5-year estimates put it at 1,815 (±221). GEOID 3300756100.
Residents, July 2025 estimate
2,096
Census Bureau estimate (no margin published)
2020 Census count: 2,126 · ACS 2020-2024: 1,815 ±221
Median household income
$40,268
±$6,838 (90% margin)
New Hampshire: $99,031
Median home value
$120,100
±$15,488 (90% margin)
New Hampshire: $402,500
Median gross rent
$1,018
±$96 (90% margin)
New Hampshire: $1,491
Where is Northumberland and what county is it in?
Northumberland is a town in Coos County, New Hampshire. It covers 35.7 square miles of land, 60 residents per square mile in 2020.
One place lies inside Northumberland: Groveton (CDP, 1,068 in 2020).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Northumberland, and is it growing?
The Census Bureau estimates that 2,096 people lived in Northumberland on July 1, 2025, down 1.6% since 2020, while New Hampshire grew 2.7%. The 2020 Census counted 2,126 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 1,815 (±221).
| Measure | Northumberland | Coos County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 1,815±221 | 31,271 | −507 |
| Households | 928±131 | 14,002 | no clear change |
| Average household size | 1.96±0.16 | 2.08 | −0.40 |
| Housing units | 1,094±129 | 20,637 | no clear change |
Northumberland's population since 2000
From 2,438 in 2000 to 2,096 in 2025: down 14.0%. The 2000, 2010 and 2020 figures are census counts, each for Northumberland 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 Northumberland?
The median resident of Northumberland is 45.7 years old; 16.6% are under 18 and 24.4% are 65 or older. The largest group is non-Hispanic white residents at 91.9%, then non-Hispanic residents of two or more races at 6.9%.
| Measure | Northumberland | Coos County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 45.7±6.2 | 50.3 | no clear change |
| Under 18 years | 16.6%±4.1 pts | 16.0% | – |
| 65 years and over | 24.4%±5.7 pts | 26.1% | – |
| Male | 47.0%±4.3 pts | 52.2% | – |
| Hispanic or Latino (any race) | 0.1%±0.2 pts | 2.4% | – |
| White alone, not Hispanic | 91.9%±6.5 pts | 91.9% | no clear change |
| Black or African American alone, not Hispanic | 0.0%±1.9 pts | 2.0% | – |
| Asian alone, not Hispanic | 0.4%±0.7 pts | 0.1% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.1%±1.8 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±1.9 pts | 0.0% | – |
| Two or more races, not Hispanic | 6.9%±6.1 pts | 2.9% | – |
| Some other race alone, not Hispanic | 0.7%±0.8 pts | 0.5% | – |
| Born outside the United States | 3.1%±2.1 pts | 2.8% | – |
| Speak a language other than English at home (age 5+) | 8.1%±5.6 pts | 7.6% | – |
| Civilian veterans (age 18+) | 14.8%±5.6 pts | 10.3% | – |
| With a disability | 26.3%±5.7 pts | 21.9% | – |
| No health insurance coverage | 9.3%±3.8 pts | 7.7% | no clear change |
| High school graduate or higher (age 25+) | 91.5%±3.5 pts | 90.4% | – |
| Bachelor's degree or higher (age 25+) | 17.2%±5.5 pts | 20.1% | +8.3 pts |
| Graduate or professional degree (age 25+) | 3.8%±2.3 pts | 7.0% | – |
| Lived in the same house a year earlier | 88.2%±6.4 pts | 89.7% | – |
| Moved from another state in the past year | 1.2%±1.0 pts | 3.2% | – |
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 Northumberland earn?
Half of Northumberland's 928 households earn less than $40,268 a year (±$6,838), against $57,677 in Coos County and $99,031 in New Hampshire. In 2015-2019 the median was $55,381 in 2024 dollars, so it fell by $15,113 after inflation. 23.1% of residents live below the poverty line.
| Measure | Northumberland | Coos County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $40,268±$6,838 | $57,677 | −$15,113 |
| Mean household income | $59,861±$8,884 | $83,445 | – |
| Per capita income | $29,157±$3,558 | $37,679 | no clear change |
| People below the poverty line | 23.1%±7.7 pts | 13.2% | +12.9 pts |
| Children under 18 below the poverty line | 28.6%±15.9 pts | 16.3% | – |
| Households receiving SNAP | 15.8%±7.3 pts | 12.6% | – |
| Households with a computer | 90.1%±5.6 pts | 92.1% | – |
| Households with a broadband subscription | 92.1%±3.6 pts | 86.4% | – |
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 Northumberland?
Owners occupy 79.3% of Northumberland's occupied homes and renters 20.7%. The median owner-occupied home is valued at $120,100 by its owner (±$15,488). The median renter pays $1,018 a month including utilities, and 53.6% of renters pay 35% or more of their income on rent.
| Measure | Northumberland | Coos County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $120,100±$15,488 | $188,900 | +$26,198 |
| Median gross rent | $1,018±$96 | $876 | +$174 |
| Renters paying 35% or more of income on rent | 53.6%±20.6 pts | 35.7% | +36.1 pts |
| Median monthly owner costs, with a mortgage | $1,338±$314 | $1,464 | – |
| Owner-occupied homes | 79.3%±6.4 pts | 74.2% | +12.2 pts |
| Renter-occupied homes | 20.7%±6.4 pts | 25.8% | – |
| Housing units | 1,094±129 | 20,637 | no clear change |
| Homeowner vacancy rate | 2.1%±3.3 pts | 1.6% | – |
| Rental vacancy rate | 0.0%±16.6 pts | 3.0% | – |
| Single-family detached homes | 66.8%±7.9 pts | 68.4% | – |
| Mobile homes | 12.9%±4.3 pts | 10.1% | – |
| Built 2020 or later | 0.5%±0.7 pts | 0.6% | – |
| Built 2010 to 2019 | 4.7%±3.3 pts | 4.1% | – |
| Built 1939 or earlier | 32.3%±8.3 pts | 29.3% | – |
| Households with no vehicle | 8.0%±4.8 pts | 9.0% | – |
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 Northumberland building?
Builders took permits for 2 new housing units in Northumberland in 2025 (2 in single-family houses), 1.0 per 1,000 residents against 3.6 across New Hampshire.
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 Northumberland work and get to work?
66.2% of Northumberland's workers drive alone and 11.3% work from home. The average trip to work takes 18.0 minutes.
| Measure | Northumberland | Coos County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 56.2%±7.0 pts | 52.9% | – |
| Unemployment rate | 1.8%±1.9 pts | 4.3% | – |
| Drove alone to work | 66.2%±10.1 pts | 75.9% | – |
| Carpooled | 13.4%±5.7 pts | 9.7% | – |
| Public transportation | 0.0%±4.0 pts | 0.1% | – |
| Walked | 7.1%±5.0 pts | 3.9% | – |
| Worked from home | 11.3%±6.8 pts | 8.0% | – |
| Mean travel time to work | 18.0 min±2.6 | 23.1 min | −5.5 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 Northumberland?
No census tract lies mostly in Northumberland; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 9504Coos County | 3,184 | $45,938 |
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 Northumberland) · Census block assignment files
How does Northumberland compare with other places in New Hampshire?
By the Census Bureau's July 2025 estimates, Northumberland is the 4,671st-most populous of the 16,079 U.S. towns and townships that have one and the 123rd-most populous of 221 in New Hampshire.
Northumberland ranks 233rd of 235 places in New Hampshire with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 123rd | 221 |
| Growth 2020-2025 (PEP) | 185th | 187 |
| Residents per square mile | 198th | 241 |
| Median household income | 233rd | 235 |
| Per capita income | 235th | 240 |
| Median home value | 236th | 239 |
| Median gross rent | 200th | 221 |
| Poverty rate | 4th | 160 |
| Bachelor's degree or higher | 227th | 239 |
| Median age | 122nd | 239 |
| Owner-occupied share | 127th | 241 |
| Work from home | 163rd | 214 |
| Travel time to work | 229th | 241 |
Northumberland's figures with every place in New Hampshire (CSV)
Every place in New Hampshire, sortable · Compare Northumberland 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 Northumberland?
17 of the 57 figures for Northumberland 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 Northumberland 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.