Middlesex County Map
The County of Middlesex is located in the State of Massachusetts. Find directions to Middlesex County, browse local businesses, landmarks, get current traffic estimates, road conditions, and more. According to the 2020 US Census the Middlesex County population is estimated at 1,609,379 people. The Middlesex County time zone is Eastern Daylight Time which is 5 hours behind Coordinated Universal Time (UTC).
Nearby counties include Essex County, Norfolk County, Suffolk County, Worcester County, Hillsborough County.
Top cities include Lowell, Cambridge, Newton, Somerville, Framingham