The Borough of South Plainfield is located in Middlesex County. The borough is roughly 32 miles southwest of New York City. South Plainfield's convenient location provides quick access to major transportation corridors such as Interstate 287, the Garden State Parkway and Route 22. The borough is home to 23,000 residents. Our schools include South Plainfield High School, South Plainfield Middle School, Grant Elementary, Kennedy Elementary, Riley Elementary, Franklin Elementary and Roosevelt Elementary school.