Stonington is a medium-sized coastal town (i.e. on the ocean, a bay, or inlet) located in the state of Connecticut. With a population of 18,427 people and five constituent neighborhoods, Stonington is the 65th largest community in Connecticut.

There are many members of the armed forces living in Stonington. You will notice when you visit or live here that some of the people you meet or see around town are employed by the armed services - even if they are not always in uniform.

Telecommuters are a relatively large percentage of the workforce: 12.76% of people work from home. While this number may seem small overall, as a fraction of the total workforce it is high relative to the nation. 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.

Stonington is also nautical, which means that parts of it are somewhat historic and touch the ocean or tidal bodies of water, such as inlets and bays. Quite often, nautical areas such as these attract visitors and locals who come to enjoy the scenery and various waterfront activities.

The education level of Stonington ranks among the highest in the nation. Of the 25-and-older adult population in Stonington, 49.62% 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 Stonington in 2018 was $57,003, which is upper middle income relative to Connecticut, and wealthy relative to the rest of the US. This equates to an annual income of $228,012 for a family of four.

Stonington is a somewhat ethnically-diverse town. The people who call Stonington home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Stonington residents report their race to be White, followed by Black or African-American. Important ancestries of people in Stonington include Irish, English, Italian, German, and French.

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