Southbridge is a medium-sized city located in the state of Massachusetts. With a population of 17,619 people and five associated neighborhoods, Southbridge is the 116th largest community in Massachusetts. Southbridge has an unusually large stock of pre-World War II architecture, making it one of the older and more historic cities.

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

The citizens of Southbridge are slightly less educated than the national average of 21.84% for the average city or town: 17.00% of adults in Southbridge have a bachelor's degree or advanced degree

The per capita income in Southbridge in 2022 was $31,102, which is low income relative to Massachusetts, and middle income relative to the rest of the US. This equates to an annual income of $124,408 for a family of four. However, Southbridge contains both very wealthy and poor people as well.

Southbridge is an extremely ethnically-diverse city. The people who call Southbridge home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Southbridge residents report their race to be White, followed by Black or African-American. Southbridge also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 36.01% of the city’s residents. Important ancestries of people in Southbridge include French, Irish, French Canadian, Italian, and Polish.

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