Middlesex is a part of the Piscataway Township, region/metro area of New Jersey.It is in the Sixth Congressional District and is part of New Jersey's 22nd Legislative District. Major attractions include National Historical Parks and National Military Parks/Battlefields. Among the biggest companies in Middlesex are Prudential Insurance Company and Merrill Lynch & Company. The biggest schools here are Hazelwood Elementary School and Parker Elementary School . One of the best places to visit when you are in Middlesex is Plays-in-the-Park. Famous persons from Middlesex include Jack Mikolajczyk,Jerry Schaefer.