Union County, New Jersey
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Stop 1: County
About Union County
Union County is a county in the northern-central 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 increase of 38,846 (+7.2%) from the 2010 census count of 536,499. The United States Census Bureau's Population Estimates Program estimated a 2025 population of 601,863, an increase of 26,518 (+4.6%) from the 2020 decennial census. Its county seat is Elizabeth, which is also the most populous municipality in the county, with a 2020 census population of 137,298, and the largest by area, covering 13.46 square miles (34.9 km2).
Description adapted from Wikipedia, CC BY-SA 4.0.
Stop 2: Facts
Union County at a glance
- County seat
- Elizabeth
- Population
- 575,345 (2020)
- Land area
- 105 sq mi
- Founded
- 1857
Stop 3: Places
Largest communities in Union County
- Elizabeth County seat137,298
- Union59,728
- Plainfield54,586
- Linden43,738
- Westfield31,032
Stop 4: History
History of Union County
In 2015, the county had a per capita personal income of $60,089, the seventh-highest in New Jersey and ranked 152nd of 3,113 counties in the United States. The Bureau of Economic Analysis ranked the county as having the 119th-highest per capita income of all 3,113 counties in the United States (and the eighth-highest in New Jersey) in 2009. A study by Forbes.com determined that Union County residents pay the second-highest property taxes of all U.S. counties, based on 2007 data. With a population density of 4,955 inhabitants per square mile (1,913/km2) in 2000, Union County was the 15th-most densely populated county in the United States as of the 2010 Census, and third-densest in New Jersey, behind Hudson County (ranked 6th nationwide at 9,754 per square mile) and Essex County (ranked 11th at 6,126).
Adapted from Wikipedia, CC BY-SA 4.0.
Stop 5: Check
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Stop 6: Resources
Official channels
Union County election resources
Statewide tools and every New Jersey resource in one place: the New Jersey page at Scan Check Protect →
Stop 7: Neighbors
Neighboring counties
Stop 8: About
Part of New Jersey Voter Check
This is the Union County page of New Jersey Voter Check, a project of True the Vote, pointing New Jersey voters at the official tools that already exist — and at Scan Check Protect to verify your registration.
Where anything here differs from what Union County or the New Jersey Division of Elections publishes, they are right and this page is not.