Middlesex County:
Middlesex County is a county located in the north-central part of the U.S. state of New Jersey, extending inland from the Raritan Valley region to the The 25 municipalities of Middlesex County are part of seven legislative districts. Helmetta, Old Bridge, and Spotswood.There are 66 cities in Middlesex County, New Jersey. Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines
Avenel, Carteret, Colonia, Cranbury, Dayton, Dunellen, East Brunswick, Edison, Fords, Helmetta, Highland Park, Iselin, Keasbey, Kendall Park, Metuchen, Middlesex, Milltown, Monmouth Junction, Monroe Township, New Brunswick, North Brunswick, Old Bridge, Parlin, Perth Amboy, Piscataway, Plainsboro, Port Reading, Sayreville, Sewaren, South Amboy, South Plainfield, South River, Spotswood, Woodbridge