Hillsborough County, New Hampshire

Hillsborough County, New Hampshire, had an estimated population of 433,415 in 2025 across 2,270 km². The figures below come from the US Census Bureau's population estimates and the American Community Survey, each shown with its own vintage and its rank among New Hampshire's counties and nationally.

Population
433,415
2025 estimate
Area
2,270 km²
Density
191
per km²
Median income
$103,545
household, ACS 2024
Median age
41
years, ACS 2024
How New Hampshire's counties spread
Amenities & Infrastructure
IndicatorValue
Households with Broadband202493.4%
Median Gross Rent2024$1,623
Median Home Value2024$421,100
Owner-Occupied Homes202467.4%
Vacant Homes20245.1%
Demography
IndicatorValue
Aged 65 and Over202417.3%
American Indian & Alaska Native20240.1%
Asian, non-Hispanic20244.3%
Average Household Size2024people2.5
Black, non-Hispanic20242.2%
Foreign-Born202410.3%
Hispanic or Latino20248.5%
Median Age2024years41
Sex Ratio2024per 1,000 males993
Speak a Language Other Than English202413.9%
Under 18202419.6%
Veterans20246.9%
White, non-Hispanic202480.1%
Economy
IndicatorValue
Below Poverty Line20246.7%
Households on SNAP20246.6%
Income Inequality2024index0.430
Median Household Income2024$103,545
Per Capita Income2024$54,111
Unemployment Rate20243.1%
Education
IndicatorValue
Bachelor's Degree or Higher202441.5%
High School or Higher202493.4%
Health Coverage
IndicatorValue
No Health Insurance20245.5%
With a Disability202411.8%
Population & Density
IndicatorValue
Population2025433,415
Population Density2025/km²191
Work & Commute
IndicatorValue
Commute by Public Transit20240.6%
Households with No Vehicle20245.2%
Mean Commute Time2024minutes27.3
Work from Home202418.1%
Compare Hillsborough County against every other county on a map, add layers and run a scatter — open the atlas. Sources and vintages for every figure on this page are listed under datasets, or browse all 3,144 counties.