County · New Hampshire
Rockingham County, New Hampshire
Rockingham County, New Hampshire. Rockingham County had 324,077 residents in 2025 by the Census Bureau's estimate, up 3.1% since 2020, in line with New Hampshire (+2.7%). It holds 47 places (1 city, village or borough, 36 towns and townships and 10 census-designated) and 73 census tracts. GEOID 33015.
Rockingham County is one of the 7 counties of the Boston-Cambridge-Newton, MA-NH metropolitan statistical area (the Census Bureau's July 2023 delineation).
Residents, July 2025 estimate
324,077
Census Bureau estimate (no margin published)
2020 Census count: 314,176 · ACS 2020-2024: 319,082
Median household income
$118,331
±$2,820 (90% margin)
New Hampshire: $99,031
Median home value
$497,500
±$6,191 (90% margin)
New Hampshire: $402,500
Median gross rent
$1,687
±$46 (90% margin)
New Hampshire: $1,491
How many people live in Rockingham County, and is it growing?
The 2020 Census counted 314,176 residents in Rockingham County. The Census Bureau estimates 324,077 for July 1, 2025, up 3.1% since 2020, in line with New Hampshire (+2.7%). The 2020-2024 American Community Survey puts the population at 319,082 over 695 square miles of land.
| Measure | Rockingham County | New Hampshire | Change since 2015-2019 |
|---|---|---|---|
| Total population | 319,082 | 1,394,868 | +12,723 |
| Households | 127,570±801 | 555,822 | +6,525 |
| Average household size | 2.48±0.02 | 2.44 | −0.03 |
| Housing units | 137,794±93 | 648,472 | +5,625 |
Rockingham County's population since 2000
From 277,359 in 2000 to 324,077 in 2025: up 16.8%. The 2000, 2010 and 2020 figures are census counts. 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); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov
What cities and towns are in Rockingham County?
Rockingham County holds 47 places: 1 city, village or borough (an incorporated place), 36 towns and townships (county subdivisions with their own government) and 10 census-designated places. The largest is Derry with 33,990 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Derry | 34,317 | $108,944 |
|---|---|---|
| Salem | 30,089 | $110,490 |
| Londonderry | 25,826 | $132,556 |
| Derry CDP | 22,879 | $91,673 |
| Portsmouth | 21,956 | $106,219 |
| Hampton | 16,214 | $95,233 |
| Exeter | 16,049 | $110,346 |
| Windham | 15,817 | $189,583 |
| Londonderry CDP | 11,645 | $119,571 |
| Raymond | 10,684 | $104,597 |
| Exeter CDP | 10,109 | $87,346 |
| Hampton CDP | 9,597 | $97,163 |
| Newmarket | 9,430 | $100,845 |
| Hampstead | 8,998 | $112,348 |
| Seabrook | 8,401 | $84,349 |
| Plaistow | 7,830 | $108,317 |
| Stratham | 7,669 | $151,998 |
| Epping | 7,125 | $104,220 |
| Atkinson | 7,087 | $146,380 |
| Sandown | 6,548 | $135,040 |
| Kingston | 6,202 | $105,330 |
| Auburn | 5,946 | $153,253 |
| Newmarket CDP | 5,797 | $87,196 |
| Rye | 5,543 | $140,655 |
| Chester | 5,232 | $142,212 |
| Nottingham | 5,229 | $122,201 |
| Deerfield | 4,855 | $131,563 |
| Newton | 4,820 | $138,487 |
| Fremont | 4,739 | $120,781 |
| Northwood | 4,641 | $129,375 |
| North Hampton | 4,538 | $146,458 |
| Brentwood | 4,490 | $165,509 |
| Danville | 4,408 | $115,104 |
| Greenland | 4,067 | $162,837 |
| Candia | 4,013 | $119,737 |
| Raymond CDP | 3,738 | $73,066 |
| Epping CDP | 2,693 | $95,273 |
| Hampton Beach | 2,598 | $82,557 |
| East Kingston | 2,441 | $138,194 |
| Hampton Falls | 2,403 | $166,157 |
| Kensington | 2,095 | $165,083 |
| Newfields | 1,769 | $197,885 |
| Seabrook Beach | 1,078 | $93,571 |
| New Castle | 1,000 | $176,953 |
| South Hampton | 894 | $152,500 |
| Newington | 811 | $145,833 |
| Newfields CDPGEOID 3351300 | 378 | $185,769 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov
Who lives in Rockingham County?
The median resident of Rockingham County is 45.0 years old; 18.5% are under 18 and 20.4% are 65 or older. The largest group is non-Hispanic white residents at 89.5%, then Hispanic or Latino residents (of any race) at 3.7%. 5.2% of residents were born outside the United States.
| Measure | Rockingham County | New Hampshire | Change since 2015-2019 |
|---|---|---|---|
| Median age | 45.0±0.1 | 43.3 | +0.5 |
| Under 18 years | 18.5% | 18.2% | – |
| 65 years and over | 20.4%±0.1 pts | 20.1% | – |
| Hispanic or Latino (any race) | 3.7% | 4.7% | +0.7 pts |
| White alone, not Hispanic | 89.5%±0.3 pts | 86.9% | −3.0 pts |
| Black or African American alone, not Hispanic | 0.7%±0.1 pts | 1.3% | no clear change |
| Asian alone, not Hispanic | 1.9%±0.1 pts | 2.6% | −0.2 pts |
| American Indian and Alaska Native alone, not Hispanic | 0.1%±0.1 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 3.6%±0.4 pts | 4.0% | – |
| Some other race alone, not Hispanic | 0.5%±0.2 pts | 0.4% | – |
| Born outside the United States | 5.2%±0.4 pts | 6.1% | no clear change |
| Speak a language other than English at home (age 5+) | 6.5%±0.5 pts | 7.9% | – |
| Civilian veterans (age 18+) | 7.3%±0.4 pts | 7.6% | – |
| With a disability | 11.5%±0.5 pts | 13.3% | – |
| No health insurance coverage | 4.1%±0.4 pts | 5.3% | no clear change |
| High school graduate or higher (age 25+) | 96.1%±0.4 pts | 94.4% | – |
| Bachelor's degree or higher (age 25+) | 45.7%±0.9 pts | 40.6% | +4.3 pts |
| Graduate or professional degree (age 25+) | 17.2%±0.6 pts | 16.1% | – |
| Moved from another state in the past year | 3.2%±0.3 pts | 3.6% | – |
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 Rockingham County earn?
Half of Rockingham County's 127,570 households earn less than $118,331 a year (±$2,820), against $99,031 in New Hampshire. In 2015-2019 it was $115,385 in 2024 dollars; the margins of error cannot tell the two periods apart. 4.8% of residents live below the poverty line.
| Measure | Rockingham County | New Hampshire | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $118,331±$2,820 | $99,031 | no clear change |
| Mean household income | $149,721±$2,968 | $128,322 | – |
| Per capita income | $61,558±$1,159 | $52,798 | +$3,442 |
| People below the poverty line | 4.8%±0.4 pts | 7.2% | no clear change |
| Children under 18 below the poverty line | 4.6%±1.0 pts | 7.9% | no clear change |
| Households receiving SNAP | 3.3%±0.5 pts | 6.1% | – |
| Households with a broadband subscription | 95.0%±0.5 pts | 92.9% | – |
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 Rockingham County?
Owners occupy 78.4% of Rockingham County's occupied homes and renters 21.6%. The median owner-occupied home is valued at $497,500 by its owner (±$6,191). The median renter pays $1,687 a month including utilities, and 39.7% of renters pay 35% or more of their income on rent.
| Measure | Rockingham County | New Hampshire | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $497,500±$6,191 | $402,500 | +$95,925 |
| Median gross rent | $1,687±$46 | $1,491 | +$176 |
| Renters paying 35% or more of income on rent | 39.7%±3.2 pts | 38.4% | +4.9 pts |
| Median monthly owner costs, with a mortgage | $2,669±$30 | $2,367 | – |
| Owner-occupied homes | 78.4%±0.9 pts | 72.8% | no clear change |
| Housing units | 137,794±93 | 648,472 | +5,625 |
| Homeowner vacancy rate | 0.5%±0.2 pts | 0.4% | – |
| Rental vacancy rate | 3.9%±1.1 pts | 4.0% | – |
| Single-family detached homes | 65.2%±1.0 pts | 63.3% | – |
| Mobile homes | 4.4%±0.5 pts | 5.2% | – |
| Built 2020 or later | 1.9%±0.3 pts | 1.3% | – |
| Built 1939 or earlier | 12.5%±0.7 pts | 18.6% | – |
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 Rockingham County building?
Builders took permits for 1,876 new housing units across Rockingham County in 2025 (1,073 single-family), 5.8 per 1,000 residents.
Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Rockingham County get to work?
72.1% of Rockingham County's workers drive alone and 19.4% work from home. The average trip to work takes 28.9 minutes. The unemployment rate in 2020-2024 averaged 3.6%.
| Measure | Rockingham County | New Hampshire | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 67.9%±0.8 pts | 66.3% | – |
| Unemployment rate | 3.6%±0.4 pts | 3.3% | no clear change |
| Drove alone to work | 72.1%±1.2 pts | 72.0% | – |
| Carpooled | 5.5%±0.6 pts | 7.0% | – |
| Public transportation | 0.4%±0.1 pts | 0.5% | – |
| Walked | 1.3%±0.3 pts | 2.3% | – |
| Worked from home | 19.4%±1.0 pts | 16.8% | +12.1 pts |
| Mean travel time to work | 28.9 min±0.5 | 26.7 min | −1.5 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 are Rockingham County's census tracts?
Rockingham County is divided into 73 census tracts. Among those with a reliable estimate, median household income runs from $66,438 (Tract 650.08) to $197,885 (Tract 675.05).
All 73 census tracts of Rockingham County, with their figures
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Rockingham County compare with New Hampshire's other counties?
| Measure | Rank |
|---|---|
| Population | 2nd of 10 |
| Growth 2020-2025 | 3rd of 10 |
| Residents per square mile | 2nd of 10 |
| Median household income | 1st of 10 |
| Median home value | 1st of 10 |
| Median gross rent | 1st of 10 |
| Poverty rate | 10th of 10 |
| Bachelor's degree or higher | 2nd of 10 |
| Median age | 5th of 10 |
Source: PlainCities ranks 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 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 Rockingham County 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.