Londonderry is a medium-sized town located in the state of New Hampshire. With a population of 26,543 people and seven associated neighborhoods, Londonderry is the ninth largest community in New Hampshire.

Londonderry home prices are not only among the most expensive in New Hampshire, but Londonderry real estate also consistently ranks among the most expensive in America.

Also of interest is that Londonderry has more people living here who work in computers and math than 95% of the places in the US.

One interesting thing about the economy is that relatively large numbers of people worked from their home: 16.82% of the workforce. While this number may seem small overall, as a fraction of the total workforce this is high compared to the rest of the county. These workers are often telecommuters who work in knowledge-based, white-collar professions. For example, Silicon Valley has large numbers of people who telecommute. Other at-home workers may be self-employed people who operate small businesses out of their homes.

Londonderry is a good choice for families with children because of several factors. Many other families with children live here, making it a place where both parents and children are more likely to develop social ties with other families. The town’s good public school district and large population of college-educated adults provide an environment conducive to academic success. Many people own their own single-family homes, providing areas for children to play and stability in the community. Finally, Londonderry’s overall crime rate is lower than average for the country.

The education level of Londonderry ranks among the highest in the nation. Of the 25-and-older adult population in Londonderry, 48.26% have at least a bachelor's degree. The typical US community has just 21.84% of its adults holding a bachelor's degree or graduate degree.

The per capita income in Londonderry in 2022 was $53,861, which is upper middle income relative to New Hampshire, and wealthy relative to the rest of the US. This equates to an annual income of $215,444 for a family of four.

The people who call Londonderry home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Londonderry residents report their race to be White, followed by Asian. Important ancestries of people in Londonderry include Irish, Italian, English, French Canadian, and German.

The most common language spoken in Londonderry is English. Other important languages spoken here include Spanish and French.