County · New Hampshire
Hillsborough County, New Hampshire
Hillsborough County, New Hampshire. Hillsborough County had 433,415 residents in 2025 by the Census Bureau's estimate, up 2.5% since 2020, in line with New Hampshire (+2.7%). It holds 47 places (2 cities, villages and boroughs, 29 towns and townships and 16 census-designated) and 103 census tracts. GEOID 33011.
Hillsborough County is the county of the Manchester-Nashua, NH metropolitan statistical area (the Census Bureau's July 2023 delineation).
Residents, July 2025 estimate
433,415
Census Bureau estimate (no margin published)
2020 Census count: 422,937 · ACS 2020-2024: 426,378
Median household income
$103,545
±$1,737 (90% margin)
New Hampshire: $99,031
Median home value
$421,100
±$3,833 (90% margin)
New Hampshire: $402,500
Median gross rent
$1,623
±$21 (90% margin)
New Hampshire: $1,491
How many people live in Hillsborough County, and is it growing?
The 2020 Census counted 422,937 residents in Hillsborough County. The Census Bureau estimates 433,415 for July 1, 2025, up 2.5% since 2020, in line with New Hampshire (+2.7%). The 2020-2024 American Community Survey puts the population at 426,378 over 877 square miles of land.
| Measure | Hillsborough County | New Hampshire | Change since 2015-2019 |
|---|---|---|---|
| Total population | 426,378 | 1,394,868 | +13,343 |
| Households | 168,740±1,106 | 555,822 | +7,654 |
| Average household size | 2.48±0.02 | 2.44 | −0.03 |
| Housing units | 177,734±330 | 648,472 | +6,542 |
Hillsborough County's population since 2000
From 380,841 in 2000 to 433,415 in 2025: up 13.8%. 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 Hillsborough County?
Hillsborough County holds 47 places: 2 cities, villages and boroughs (incorporated places), 29 towns and townships (county subdivisions with their own government) and 16 census-designated places. The largest is Manchester with 116,818 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Manchester | 115,644 | $81,007 |
|---|---|---|
| Nashua | 91,322 | $96,326 |
| Merrimack | 26,632 | $127,219 |
| Hudson | 25,394 | $124,213 |
| Bedford | 23,322 | $167,418 |
| Goffstown | 18,577 | $113,958 |
| Milford | 16,131 | $97,768 |
| Pelham | 14,222 | $135,956 |
| Amherst | 11,753 | $153,196 |
| Milford CDP | 9,212 | $78,684 |
| Weare | 9,092 | $118,271 |
| Litchfield | 8,478 | $162,036 |
| Hollis | 8,342 | $168,883 |
| Hudson CDP | 7,534 | $95,842 |
| Peterborough | 6,418 | $98,401 |
| New Boston | 6,108 | $154,250 |
| Hillsborough | 5,939 | $84,495 |
| Brookline | 5,639 | $171,046 |
| New Ipswich | 5,204 | $110,507 |
| East Merrimack | 5,176 | $87,311 |
| Pinardville | 5,034 | $79,340 |
| Wilton | 3,896 | $114,349 |
| Goffstown CDP | 3,366 | $132,997 |
| Peterborough CDP | 3,090 | $85,833 |
| Antrim | 2,651 | $86,648 |
| Mont Vernon | 2,584 | $158,036 |
| Hillsborough CDP | 2,156 | $49,205 |
| Greenville | 1,974 | $71,875 |
| Deering | 1,904 | $101,250 |
| Hancock | 1,731 | $95,208 |
| Greenfield | 1,716 | $103,603 |
| Lyndeborough | 1,702 | $116,964 |
| Francestown | 1,610 | $104,063 |
| Bennington | 1,501 | $83,875 |
| Mason | 1,448 | $111,090 |
| Antrim CDP | 1,395 | $72,738 |
| Temple | 1,382 | $94,107 |
| Wilton CDP | 1,324 | $84,342 |
| Greenville CDP | 1,074 | $53,807 |
| Amherst CDPGEOID 3301220 | 697 | $154,286 |
| Klondike CornerGEOID 3340120 | 652 | not published |
| SharonGEOID 3301168820 | 359 | $113,125 |
| Bennington CDP | 338 | $74,125 |
| New Boston CDPGEOID 3350660 | 326 | $250,000 or more |
| WindsorGEOID 3301185940 | 262 | $103,750 |
| Hancock CDPGEOID 3333620 | 213 | $55,278 |
| Francestown CDPGEOID 3327060 | 201 | $138,438 |
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 Hillsborough County?
The median resident of Hillsborough County is 41.0 years old; 19.6% are under 18 and 17.3% are 65 or older. The largest group is non-Hispanic white residents at 80.1%, then Hispanic or Latino residents (of any race) at 8.5%. 10.3% of residents were born outside the United States.
| Measure | Hillsborough County | New Hampshire | Change since 2015-2019 |
|---|---|---|---|
| Median age | 41.0±0.2 | 43.3 | +0.3 |
| Under 18 years | 19.6%±0.1 pts | 18.2% | – |
| 65 years and over | 17.3%±0.1 pts | 20.1% | – |
| Hispanic or Latino (any race) | 8.5% | 4.7% | +1.7 pts |
| White alone, not Hispanic | 80.1%±0.3 pts | 86.9% | −4.3 pts |
| Black or African American alone, not Hispanic | 2.2%±0.2 pts | 1.3% | no clear change |
| Asian alone, not Hispanic | 4.3%±0.1 pts | 2.6% | +0.3 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 | 4.3%±0.4 pts | 4.0% | – |
| Some other race alone, not Hispanic | 0.5%±0.1 pts | 0.4% | – |
| Born outside the United States | 10.3%±0.4 pts | 6.1% | +0.6 pts |
| Speak a language other than English at home (age 5+) | 13.9%±0.6 pts | 7.9% | – |
| Civilian veterans (age 18+) | 6.9%±0.3 pts | 7.6% | – |
| With a disability | 11.8%±0.5 pts | 13.3% | – |
| No health insurance coverage | 5.5%±0.4 pts | 5.3% | −0.7 pts |
| High school graduate or higher (age 25+) | 93.4%±0.4 pts | 94.4% | – |
| Bachelor's degree or higher (age 25+) | 41.5%±0.8 pts | 40.6% | +3.4 pts |
| Graduate or professional degree (age 25+) | 16.1%±0.6 pts | 16.1% | – |
| Moved from another state in the past year | 3.5%±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 Hillsborough County earn?
Half of Hillsborough County's 168,740 households earn less than $103,545 a year (±$1,737), against $99,031 in New Hampshire. In 2015-2019 the median was $100,252 in 2024 dollars, so it rose by $3,293 after inflation. 6.7% of residents live below the poverty line.
| Measure | Hillsborough County | New Hampshire | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $103,545±$1,737 | $99,031 | +$3,293 |
| Mean household income | $132,601±$2,150 | $128,322 | – |
| Per capita income | $54,111±$895 | $52,798 | +$3,708 |
| People below the poverty line | 6.7%±0.5 pts | 7.2% | −1.1 pts |
| Children under 18 below the poverty line | 8.5%±1.3 pts | 7.9% | no clear change |
| Households receiving SNAP | 6.6%±0.5 pts | 6.1% | – |
| Households with a broadband subscription | 93.4%±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 Hillsborough County?
Owners occupy 67.4% of Hillsborough County's occupied homes and renters 32.6%. The median owner-occupied home is valued at $421,100 by its owner (±$3,833). The median renter pays $1,623 a month including utilities, and 37.7% of renters pay 35% or more of their income on rent.
| Measure | Hillsborough County | New Hampshire | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $421,100±$3,833 | $402,500 | +$82,905 |
| Median gross rent | $1,623±$21 | $1,491 | +$157 |
| Renters paying 35% or more of income on rent | 37.7%±1.8 pts | 38.4% | no clear change |
| Median monthly owner costs, with a mortgage | $2,452±$28 | $2,367 | – |
| Owner-occupied homes | 67.4%±0.7 pts | 72.8% | +1.4 pts |
| Housing units | 177,734±330 | 648,472 | +6,542 |
| Homeowner vacancy rate | 0.2%±0.1 pts | 0.4% | – |
| Rental vacancy rate | 3.5%±0.8 pts | 4.0% | – |
| Single-family detached homes | 56.6%±0.6 pts | 63.3% | – |
| Mobile homes | 1.9%±0.2 pts | 5.2% | – |
| Built 2020 or later | 1.1%±0.2 pts | 1.3% | – |
| Built 1939 or earlier | 18.3%±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 Hillsborough County building?
Builders took permits for 632 new housing units across Hillsborough County in 2025 (380 single-family), 1.5 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 Hillsborough County get to work?
70.7% of Hillsborough County's workers drive alone and 18.1% work from home. The average trip to work takes 27.3 minutes. The unemployment rate in 2020-2024 averaged 3.1%.
| Measure | Hillsborough County | New Hampshire | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 70.4%±0.6 pts | 66.3% | – |
| Unemployment rate | 3.1%±0.4 pts | 3.3% | −0.9 pts |
| Drove alone to work | 70.7%±0.9 pts | 72.0% | – |
| Carpooled | 7.3%±0.6 pts | 7.0% | – |
| Public transportation | 0.6%±0.1 pts | 0.5% | – |
| Walked | 1.8%±0.3 pts | 2.3% | – |
| Worked from home | 18.1%±0.6 pts | 16.8% | +11.7 pts |
| Mean travel time to work | 27.3 min±0.4 | 26.7 min | −1.0 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 Hillsborough County's census tracts?
Hillsborough County is divided into 103 census tracts. Among those with a reliable estimate, median household income runs from $32,639 (Tract 107) to $207,183 (Tract 29.03).
All 103 census tracts of Hillsborough 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 Hillsborough County compare with New Hampshire's other counties?
| Measure | Rank |
|---|---|
| Population | 1st of 10 |
| Growth 2020-2025 | 5th of 10 |
| Residents per square mile | 1st of 10 |
| Median household income | 2nd of 10 |
| Median home value | 2nd of 10 |
| Median gross rent | 2nd of 10 |
| Poverty rate | 9th of 10 |
| Bachelor's degree or higher | 3rd of 10 |
| Median age | 9th 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 Hillsborough 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.