Union County
County in New Jersey
Union County is a county in the northern part of the U.S. state of New Jersey. As of the 2020 United States census, the county was the state's seventh-most-populous county with a population of 575,345, its highest decennial count ever and an... Wikipedia
Population: 569,815 (2022)
County seat: Elizabeth
Congressional districts: 7th, 8th, 10th, 12th
Founded: 1857
Largest city: Elizabeth (population and area)
Named for: Union threatened by slavery dispute