Londonderry

County:: Rockingham County
County Seat:: No
Area (mi²):: 12.219
State:: New Hampshire

Londonderry is a CDP located in Rockingham County, New Hampshire. Londonderry has a 2025 population of 12,419. Londonderry is currently growing at a rate of 0.75% annually and its population has increased by 3.04% since the most recent census, which recorded a population of 12,053 in 2020.

The average household income in Londonderry is $133,979 with a poverty rate of 2.78%. The median age in Londonderry is 42.5 years: 40.7 years for males, and 44.4 years for females.

Demographics

The racial composition of Londonderry includes 94.38% White, and smaller percentages for Black or African American, Native Hawaiian or Pacific Islander, other race, Asian, Native American and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Native Hawaiian or Pacific Islander

Other race

Asian

Native American

Race	Population	Percentage (of total)
White	11,615	94.38%
Two or more races	566	4.6%
Black or African American	49	0.4%
Native Hawaiian or Pacific Islander	28	0.23%
Other race	26	0.21%
Asian	23	0.19%
Native American	0	0%

Londonderry Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Londonderry's average per capita income is $62,930. Household income levels show a median of $113,109. The poverty rate stands at 2.78%.

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	$152,536	-
Families	$134,816	$147,660
Households	$113,109	$133,979
Non Families	$67,429	$84,418

$62,930

Average Income

$113,109

Median Household Income

2.78%

Poverty Rate