With 64,659 people, Belknap County is a county in New Hampshire. At a median age of 48.4, this is an older place than the country as a whole. That puts it in the top 2% of US counties for household income. 80% of homes are owner-occupied. The foreign-born share is 3%. Growth has run 15% since 2000, or 8,334 more people.
At a glance
Wealthier
median household income $92,783, above the US median
US median: $82,259
Older
median age 48.4
US median: 38.9
Average education
34% hold a bachelor's degree
US average: 36%
Less affordable
home values up 98%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Belknap County
What changed most since 1990
Median age35.0 → 48.4(+13.4 years)US over the same years: +6.0 years
White share99.0% → 92.7%(−6.3 pts)US over the same years: −17.8 pts
Homes owned by their occupants71.5% → 80.1%(+8.6 pts)US over the same years: +0.9 pts
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)18.5%(958)
US avg: 26.4%
Gulf War (1990s)13.5%(701)
US avg: 24.3%
Vietnam era38.4%(1,995)
US avg: 33.1%
Korean War5.4%(281)
US avg: 4.5%
World War II2%(105)
US avg: 1%
Share of the 5,191 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Belknap County, decade by decade
Belknap County population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
49,216
$75,540
$272,168
20.5%
2.5
2000
56,325
$79,433
$189,634
23.3%
7.1
2010
60,088
$79,019
$334,180
26.9%
10.3
2020
63,705
$81,604
$281,193
31.7%
18.7
2024
64,659
$92,783
$374,900
33.6%
17.3
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
How many people live in Belknap County, New Hampshire?
Belknap County, New Hampshire has about 64,659 residents according to the 2024 American Community Survey.
What is the median household income in Belknap County, New Hampshire?
The typical household in Belknap County, New Hampshire earns about $92,783 a year. Half of households make more than that, and half make less.
Is Belknap County, New Hampshire expensive?
In Belknap County, New Hampshire, the median home is worth about $374,900, and the typical rent is about $1,167 a month.
How educated are people in Belknap County, New Hampshire?
About 33.6% of adults age 25 and over in Belknap County, New Hampshire hold a bachelor's degree or higher.
What is the poverty rate in Belknap County, New Hampshire?
About 8.5% of people in Belknap County, New Hampshire live below the federal poverty line.
Has Belknap County, New Hampshire grown since 1990?
Yes, Belknap County, New Hampshire has grown since 1990. The population has added about 15,443 residents, a change of about 31 percent over that period.
