Sandwich is a medium-sized coastal town (i.e. on the ocean, a bay, or inlet) located in the state of Massachusetts. With a population of 20,611 people and four associated neighborhoods, Sandwich is the 96th largest community in Massachusetts.

Housing costs in Sandwich are among some of the highest in the nation, although real estate prices here don't compare to real estate prices in the most expensive communities in Massachusetts.

One interesting thing about the economy is that relatively large numbers of people worked from their home: 11.93% 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.

Sandwich 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, Sandwich’s overall crime rate is lower than average for the country.

Sandwich 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 Sandwich ranks among the highest in the nation. Of the 25-and-older adult population in Sandwich, 49.45% 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 Sandwich in 2022 was $59,623, which is upper middle income relative to Massachusetts, and wealthy relative to the rest of the US. This equates to an annual income of $238,492 for a family of four.

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

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