Union County, New Jersey Genealogy

United States &gt; New Jersey &gt; Union County

Parent County

 * 9 March 1857, created from Essex County.

Boundary Changes

 * 1860, received part of Woodbridge twp., Middlesex County as part of Rahway twp.
 * 1871, Essex County boundary clarified
 * 1871, Plainfield boundary with Piscataway twp. of Middlesex County changed
 * 1876, boundaries with Essex and Somerset counties clarified
 * 1882, Essex County boundary clarified and again in 1892
 * 1891, part of Millburn twp., Essex County to Springfield twp. and returned in 1958.

Neighboring Counties
Essex | Hudson | Middlesex | Morris | Somerset | Richmond (Staten Island) county, New York

Web Sites

 * USGenWeb project. May have maps, name indexes, history or other information for this county. Select the state, then the county.
 * Family History Library Catalog