Londonderry CDP, New Hampshire Demographics & Population 2026

Name: Londonderry CDP, New Hampshire Demographics
Creator: U.S. Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

As of 2026, Londonderry CDP, New Hampshire has a total population of 12,307, the 12th largest city in New Hampshire, with a median household income of $113,109, which is 18% higher than the state average. The poverty rate is 2.8%.

Key Takeaways

An exceptionally low poverty rate of 2.8% — among the lowest in New Hampshire.

Londonderry CDP Quick Facts

Population 12,307

Median Household Income $113,109

Median Home Value $433,100

Poverty Rate 2.8%

Unemployment Rate 4.5%

Median Age 42.5 years

Homeownership Rate 83.3%

Affordability Ratio 3.8x

Bachelor's Degree or Higher 46.1%

High School Graduation Rate 96.6%

Diversity Index 13/100

Population 12,307 12th of 100

Median Income $113,109 top 20%

Poverty Rate 2.8% 78% lower national

Median Home Value $433,100 top 20%

How Londonderry CDP Compares

Median Household Income

Londonderry CDP

$113,109

$95,628

National

$78,538

Median Home Value

Londonderry CDP

$433,100

$367,200

National

$303,400

Economy & Housing

Household Income Distribution

Under $25K 5.4%

$25K-$50K 9.1%

$50K-$100K 29.4%

$100K+ 56.1%

Employment

4.5% Unemployment Rate State: 3.4% | National: 5.2%

70.0% Labor Force Participation

Housing Overview

Owner 83.3%

Renter 16.7%

Affordability Index Affordable

3.8x home value to income ratio

People & Demographics

Age Distribution

Under 18

18.5%

18-34

23.3%

35-54

26.0%

55-74

24.6%

75+

7.6%

Race & Ethnicity

Diversity Index

Very Low Diversity

A less diverse community where one racial or ethnic group represents a large majority.

State average: 23 | National average: 60

Education

Educational Attainment (Adults 25+)

Londonderry CDP Rankings in New Hampshire

#12 Population of 100

#10 Median Income of 100

#24 Education of 100

#11 Home Value of 100

Explore New Hampshire Rankings

Cities by Population All cities ranked by size Richest Cities Ranked by median income Most Educated By bachelor's degree rate Most Affordable By housing affordability

Cities Similar to Londonderry CDP

These cities in the same state have comparable population and economic profiles.

City	Population	Median Income	Home Value	Bachelor's+	Poverty
Durham CDP	10,577	$109,934	$451,000	76.9%	14.5%
Somersworth city	12,060	$79,677	$295,800	28.7%	11.4%
Lebanon city	14,759	$92,288	$345,100	56.4%	8.6%
Hampton CDP	9,960	$96,322	$488,400	43.5%	3.7%
Exeter CDP	10,138	$83,862	$349,300	52.1%	6.9%

Population Overview

Londonderry CDP is a small city located in New Hampshire. The total population is 12,307. It ranks as the 12th most populous out of 100 cities and towns in New Hampshire.

Age Demographics

The median age in Londonderry CDP is 42.5 years. This is 2% lower than the state median of 43.2 years.

Economy, Income & Housing

The median household income in Londonderry CDP is $113,109. This is 18% higher than the state median of $95,628. Compared to the national median of $78,538, household income here is 44% higher. The poverty rate stands at 2.8%. This is 61% lower than the state poverty rate of 7.2%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 4.5%. This is 35% higher than the state rate of 3.4%. The median home value is $433,100. Housing costs are 18% higher than the state median of $367,200. The home-value-to-income ratio is 3.8x. 83.3% of occupied housing units are owner-occupied. This homeownership rate is 15% higher than the state average of 72.5%.

Race & Ethnicity

Londonderry CDP has a predominantly White (non-Hispanic) population, comprising 93.1% of all residents. Hispanic or Latino residents account for 4.6%. The Black or African American population (0.4%) is well below the state average of 1.4%. The Asian population (0.2%) is well below the state average of 2.6%.

Education

46.1% of residents aged 25 and older hold a bachelor's degree or higher. This is 16% higher than the state rate of 39.8%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 96.6%. Notably, 16.3% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Londonderry CDP, New Hampshire is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against New Hampshire state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 100 Census-designated places in New Hampshire. For official data, visit data.census.gov.

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Frequently Asked Questions

What is the population of Londonderry CDP, New Hampshire?

Londonderry CDP, New Hampshire has a population of 12,307 according to the most recent U.S. Census ACS 5-Year Estimates.

What is the median household income in Londonderry CDP, NH?

The median household income in Londonderry CDP is $113,109, which is 44% higher the national median of $78,538.

What is the poverty rate in Londonderry CDP, NH?

The poverty rate in Londonderry CDP is 2.8%. This means approximately 342 residents live below the federal poverty line.

What is the racial makeup of Londonderry CDP, New Hampshire?

Londonderry CDP's population is 93.1% White, 0.4% Black, 4.6% Hispanic/Latino, and 0.2% Asian.

What is the median home value in Londonderry CDP, NH?

The median home value in Londonderry CDP is $433,100. The home-value-to-income ratio is 3.8x.

How educated is Londonderry CDP, New Hampshire?

46.1% of adults (25+) in Londonderry CDP hold a bachelor's degree or higher, and 16.3% hold a graduate or professional degree.