It was first listed as a CDP prior to the 2010 census.

[7] Connecticut Farms borders the neighborhood to the south.

New Jersey Route 82 (Morris Avenue) is the main street through Union, leading southeast 4 miles (6 km) to Elizabeth and northwest 2 miles (3 km) to Springfield.

Union first appeared as a census designated place in the 2020 U.S.

This Union County, New Jersey state location article is a stub.