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. For every 100 females there are 97.8 males.
Data after 2023 is projected based on recent change
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.
White (94.38%)
Two or more races (4.6%)
Black or African American (0.4%)
Native Hawaiian or Pacific Islander (0.23%)
Other race (0.21%)
Asian (0.19%)
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% |
Married
Widowed
Divorced
Separated
Never Married
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%.
Name | Median | Mean |
|---|---|---|
| Married Families | $152,536 | - |
| Families | $134,816 | $147,660 |
| Households | $113,109 | $133,979 |
| Non Families | $67,429 | $84,418 |
Average Income
Median Household Income
Poverty Rate