Northfield

County:: Merrimack County
County Seat:: No
Area (mi²):: 28.506
State:: New Hampshire

Northfield is located in Merrimack County, New Hampshire. Northfield has a 2025 population of 5,105. Northfield is currently growing at a rate of 0.85% annually and its population has increased by 4.7% since the most recent census, which recorded a population of 4,876 in 2020.

The average household income in Northfield is $98,637 with a poverty rate of 8.64%. The median age in Northfield is 43.8 years: 46 years for males, and 43.4 years for females.

Demographics

The racial composition of Northfield includes 92.21% White, and smaller percentages for Native American, Black or African American, Asian, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Two or more races

Native American

Black or African American

Asian

Native Hawaiian or Pacific Islander

Other race

Race	Population	Percentage (of total)
White	4,545	92.21%
Two or more races	248	5.03%
Native American	58	1.18%
Black or African American	40	0.81%
Asian	38	0.77%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

Northfield Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Northfield's average per capita income is $52,205. Household income levels show a median of $84,552. The poverty rate stands at 8.64%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$110,313	-
Families	$104,474	$113,567
Households	$84,552	$98,637
Non Families	$51,314	$53,367

$52,205

Average Income

$84,552

Median Household Income

8.64%

Poverty Rate