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 and multiracial populations.

Population by Race

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%

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