First-order administrative division in Union County, New Jersey
Borough of Fanwood Borough of Garwood Borough of Kenilworth Borough of Mountainside Borough of New Providence Borough of Roselle Borough of Roselle Park City of Elizabeth City of Linden City of Plainfield City of Rahway City of Summit Town of Westfield Township of Berkeley Heights Township of Clark Township of Cranford Township of Hillside Township of Scotch Plains Township of Springfield Township of Union Township of Winfield Union County