Union County, New Jersey

county in New Jersey, United States

Union County is a county in the U.S. state of New Jersey. As of the 2020 census, the county had a population of 575,345.[1] The county seat is Elizabeth.

Location within New Jersey
The flag of Union County, New Jersey


  1. "QuickFacts: Union County, New Jersey". United States Census Bureau. Retrieved August 16, 2023.