Northumberland

County:: Coos County
County Seat:: No
Area (mi²):: 35.689
State:: New Hampshire

Northumberland is located in Coos County, New Hampshire. Northumberland has a 2025 population of 2,084. Northumberland is currently declining at a rate of -0.81% annually and its population has decreased by -1.98% since the most recent census, which recorded a population of 2,126 in 2020.

The average household income in Northumberland is $64,356 with a poverty rate of 17.42%.The median age in Northumberland is 48 years: 49.5 years for males, and 45.3 years for females.

Demographics

The racial composition of Northumberland includes 91.79% White, and smaller percentages for other race, Native American, Asian and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	1,744	91.79%
Two or more races	135	7.11%
Other race	9	0.47%
Native American	7	0.37%
Asian	5	0.26%

Northumberland Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Northumberland's average per capita income is $39,036. Household income levels show a median of $49,353. The poverty rate stands at 17.42%.

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	$81,458	-
Families	$71,029	$74,479
Households	$49,353	$64,356
Non Families	$24,563	$31,780

$39,036

Average Income

$49,353

Median Household Income

17.42%

Poverty Rate