Robin Hill is a populated place LOCATED WITHIN the City of Marlborough. In turn, the City of Marlborough is located within Middlesex County.
Robin Hill is located at latitude 42.361 and longitude -71.596.
Since Robin Hill is located within the City of Marlborough, all of the census and demographic data for residents of Robin Hill are included as part of the information reported for City of Marlborough in the "Profile" tab above.