Town · New Hampshire
Brentwood, New Hampshire
Brentwood, town, in Rockingham County, New Hampshire. Brentwood had 4,923 residents on July 1, 2025 by the Census Bureau's estimate, up 9.8% since 2020; the 2020 Census counted 4,490 and the ACS 2020-2024 5-year estimates put it at 4,641 (±19). GEOID 3301507220.
Residents, July 2025 estimate
4,923
Census Bureau estimate (no margin published)
2020 Census count: 4,490 · ACS 2020-2024: 4,641 ±19
Median household income
$165,509
±$23,185 (90% margin)
New Hampshire: $99,031
Median home value
$528,100
±$74,929 (90% margin)
New Hampshire: $402,500
Median gross rent
$2,217
±$654 (90% margin)
New Hampshire: $1,491
Where is Brentwood and what county is it in?
Brentwood is a town in Rockingham County, New Hampshire. It covers 16.8 square miles of land, 267 residents per square mile in 2020.
Brentwood is in the Boston-Cambridge-Newton, MA-NH metropolitan statistical area, which takes in 7 counties (Census Bureau delineation, July 2023).
Brentwood is the same area as Census Tract 600 of Rockingham County: the tract's figures are Brentwood's own.
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Brentwood, and is it growing?
The Census Bureau estimates that 4,923 people lived in Brentwood on July 1, 2025, up 9.8% since 2020, faster than New Hampshire (+2.7%). The 2020 Census counted 4,490 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 4,641 (±19).
| Measure | Brentwood | Rockingham County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 4,641±19 | 319,082 | no clear change |
| Households | 1,527±149 | 127,570 | no clear change |
| Average household size | 2.81±0.27 | 2.48 | no clear change |
| Housing units | 1,616±149 | 137,794 | no clear change |
Brentwood's population since 2000
From 3,197 in 2000 to 4,923 in 2025: up 54.0%. The 2000, 2010 and 2020 figures are census counts, each for Brentwood 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 Brentwood?
The median resident of Brentwood is 43.8 years old; 21.4% are under 18 and 21.8% are 65 or older. The largest group is non-Hispanic white residents at 93.2%, then non-Hispanic residents of two or more races at 3.8%. 6.8% of residents were born outside the United States.
| Measure | Brentwood | Rockingham County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 43.8±3.1 | 45.0 | no clear change |
| Under 18 years | 21.4%±2.2 pts | 18.5% | – |
| 65 years and over | 21.8%±2.6 pts | 20.4% | – |
| Male | 52.6%±4.3 pts | 49.7% | – |
| Hispanic or Latino (any race) | 1.4%±1.2 pts | 3.7% | – |
| White alone, not Hispanic | 93.2%±3.1 pts | 89.5% | no clear change |
| Black or African American alone, not Hispanic | 0.2%±0.2 pts | 0.7% | – |
| Asian alone, not Hispanic | 1.4%±1.3 pts | 1.9% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±0.7 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.7 pts | 0.0% | – |
| Two or more races, not Hispanic | 3.8%±2.5 pts | 3.6% | – |
| Some other race alone, not Hispanic | 0.0%±0.7 pts | 0.5% | – |
| Born outside the United States | 6.8%±2.4 pts | 5.2% | +3.1 pts |
| Speak a language other than English at home (age 5+) | 6.8%±3.1 pts | 6.5% | – |
| Civilian veterans (age 18+) | 8.9%±3.1 pts | 7.3% | – |
| With a disability | 7.9%±3.1 pts | 11.5% | – |
| No health insurance coverage | 2.5%±1.8 pts | 4.1% | – |
| High school graduate or higher (age 25+) | 96.1%±2.1 pts | 96.1% | – |
| Bachelor's degree or higher (age 25+) | 49.0%±6.2 pts | 45.7% | no clear change |
| Graduate or professional degree (age 25+) | 16.2%±4.3 pts | 17.2% | – |
| Lived in the same house a year earlier | 89.8%±3.6 pts | 91.5% | – |
| Moved from another state in the past year | 3.8%±3.2 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 Brentwood earn?
Half of Brentwood's 1,527 households earn less than $165,509 a year (±$23,185), against $118,331 in Rockingham County and $99,031 in New Hampshire. In 2015-2019 it was $154,606 in 2024 dollars; the margins of error cannot tell the two periods apart. 3.3% of residents live below the poverty line.
| Measure | Brentwood | Rockingham County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $165,509±$23,185 | $118,331 | no clear change |
| Mean household income | $192,189±$25,275 | $149,721 | – |
| Per capita income | $63,117±$8,415 | $61,558 | no clear change |
| People below the poverty line | 3.3%±1.9 pts | 4.8% | no clear change |
| Children under 18 below the poverty line | 1.3%±2.1 pts | 4.6% | – |
| Households receiving SNAP | 0.0%±2.3 pts | 3.3% | – |
| Households with a computer | 96.4%±2.9 pts | 97.3% | – |
| Households with a broadband subscription | 97.1%±2.4 pts | 95.0% | – |
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 Brentwood?
Owners occupy 96.0% of Brentwood's occupied homes and renters 4.0%. The median owner-occupied home is valued at $528,100 by its owner (±$74,929). The median renter pays $2,217 a month including utilities, and 63.9% of renters pay 35% or more of their income on rent.
| Measure | Brentwood | Rockingham County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $528,100±$74,929 | $497,500 | no clear change |
| Median gross rent | $2,217±$654 | $1,687 | – |
| Renters paying 35% or more of income on rent | 63.9%±38.1 pts | 39.7% | – |
| Median monthly owner costs, with a mortgage | $2,918±$436 | $2,669 | – |
| Owner-occupied homes | 96.0%±2.7 pts | 78.4% | no clear change |
| Renter-occupied homes | 4.0%±2.7 pts | 21.6% | – |
| Housing units | 1,616±149 | 137,794 | no clear change |
| Homeowner vacancy rate | 0.0%±2.3 pts | 0.5% | – |
| Rental vacancy rate | 0.0%±39.4 pts | 3.9% | – |
| Single-family detached homes | 83.5%±9.1 pts | 65.2% | – |
| Mobile homes | 0.7%±1.0 pts | 4.4% | – |
| Built 2020 or later | 3.7%±2.4 pts | 1.9% | – |
| Built 2010 to 2019 | 11.3%±5.5 pts | 8.6% | – |
| Built 1939 or earlier | 14.4%±5.6 pts | 12.5% | – |
| Households with no vehicle | 1.8%±2.1 pts | 3.1% | – |
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 Brentwood building?
Builders took permits for 30 new housing units in Brentwood in 2025 (30 in single-family houses), 6.1 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 Brentwood work and get to work?
69.3% of Brentwood's workers drive alone and 23.1% work from home. The average trip to work takes 27.8 minutes.
| Measure | Brentwood | Rockingham County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 58.0%±5.3 pts | 67.9% | – |
| Unemployment rate | 2.3%±3.0 pts | 3.6% | – |
| Drove alone to work | 69.3%±7.9 pts | 72.1% | – |
| Carpooled | 4.2%±3.0 pts | 5.5% | – |
| Public transportation | 0.2%±0.3 pts | 0.4% | – |
| Walked | 1.4%±1.9 pts | 1.3% | – |
| Worked from home | 23.1%±8.0 pts | 19.4% | +9.9 pts |
| Mean travel time to work | 27.8 min±4.6 | 28.9 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 Brentwood?
1 census tract lies mostly in Brentwood (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 600Rockingham County | 4,641 | $165,509 |
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 Brentwood) · Census block assignment files
How does Brentwood compare with other places in New Hampshire?
By the Census Bureau's July 2025 estimates, Brentwood is the 2,339th-most populous of the 16,079 U.S. towns and townships that have one and the 65th-most populous of 221 in New Hampshire.
Brentwood ranks 10th 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 | 65th | 221 |
| Growth 2020-2025 (PEP) | 3rd | 187 |
| Residents per square mile | 106th | 241 |
| Median household income | 10th | 235 |
| Per capita income | 37th | 240 |
| Median home value | 31st | 239 |
| Median gross rent | 10th | 221 |
| Poverty rate | 150th | 160 |
| Bachelor's degree or higher | 50th | 239 |
| Median age | 146th | 239 |
| Owner-occupied share | 11th | 241 |
| Work from home | 32nd | 214 |
| Travel time to work | 120th | 241 |
Brentwood's figures with every place in New Hampshire (CSV)
Every place in New Hampshire, sortable · Compare Brentwood 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 Brentwood?
19 of the 57 figures for Brentwood 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 Brentwood 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.