The Plainfields
From Wikipedia, the free encyclopedia
The Plainfields are a group of municipalities spanning the convergence of Somerset, Union, and Middlesex Counties in New Jersey, all of which have the word Plainfield in their name. They are the Borough of North Plainfield (Somerset Co.), City of Plainfield (Union Co.), and the Borough of South Plainfield (Middlesex Co.).
While each community has its own independent government, and the three municipalities have no shared governance even at the county level, the term is often used to refer to the area, including on highway exit signs. Signage for Exit 40 on Interstate 78, for example, refers to "The Plainfields" as a destination.