Union County, New Jersey

New Jersey

Key Facts

State
New Jersey
Population
572,726

About Union County

Union County is a county in New Jersey (NJ) with a population of approximately 572,726 residents. The county seat is .

Union County is one of the counties that make up New Jersey, providing local government services including law enforcement, property records, courts, and public infrastructure to its residents.

County Details

County
Union County
State
New Jersey (NJ)
Population
572,726
County Seat

Local Government

Union County residents are served by county-level government that typically includes:

  • County commission or board of supervisors — Elected officials responsible for county governance, budgets, and policy
  • Sheriff's office — Provides law enforcement services throughout Union County
  • County clerk — Manages vital records, elections, and property records
  • County courts — The judicial branch serving Union County residents
  • Tax assessor — Handles property tax assessments and collections

Frequently Asked Questions

What is the population of Union County?

Union County has an approximate population of 572,726 residents.

What is the county seat of Union County?

The county seat of Union County is .

What state is Union County in?

Union County is located in New Jersey (NJ).