Marlborough is located in Middlesex County, MA. The population is 38,875, making Marlborough the 9th largest city in Middlesex County.
There are 8 public schools in Marlborough with an average Homefacts rating of B. The total crime rate for Marlborough is very low , and there are 14 registered sex offenders residing in the city. Unemployment in Marlborough is low and the median home sales price is $0. Detailed and up-to-date Marlborough property reports are available for any property address.
Cities near Marlborough include Hudson, Southborough and Berlin.