Middlesex County Map
The County of Middlesex is located in the State of New Jersey. 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 822,736 people. The Middlesex County time zone is Eastern Daylight Time which is 5 hours behind Coordinated Universal Time (UTC).
Nearby counties include Mercer County, Monmouth County, Somerset County, Union County, Richmond County.
Top cities include Edison, Woodbridge Township, Old Bridge Township, Piscataway, New Brunswick