Marlborough is a medium-sized city located in the state of Massachusetts. With a population of 40,971 people and seven associated neighborhoods, Marlborough is the 37th largest community in Massachusetts.

Housing costs in Marlborough 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.

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

A relatively large number of people in Marlborough telecommute to their jobs. Overall, about 15.53% of the workforce works from home. While this may seem like a small number, as a fraction of the total workforce it ranks among the highest in the country. 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.

The citizens of Marlborough are among the most well-educated in the nation: 40.65% of adults in Marlborough have a bachelor's degree or even advanced degree, whereas the average US city has 21.84% holding at least a bachelor's degree.

The per capita income in Marlborough in 2022 was $45,736, which is lower middle income relative to Massachusetts, and wealthy relative to the rest of the US. This equates to an annual income of $182,944 for a family of four. However, Marlborough contains both very wealthy and poor people as well.

Marlborough is an extremely ethnically-diverse city. The people who call Marlborough home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Marlborough residents report their race to be White, followed by Asian. Marlborough also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 16.94% of the city’s residents. Important ancestries of people in Marlborough include Irish, Italian, Brazilian, English, and German.

Foreign born people are also an important part of Marlborough's cultural character, accounting for 29.13% of the city’s population.

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