Table DP-1. Profile of General Demographic Characteristics: 2010 for Union City city Archived 2012-04-02 at the Wayback Machine, New Jersey Department of Labor and Workforce Development.
Table1. New Jersey Counties and Most Populous Cities and Townships: 2020 and 2010 Censuses, New Jersey Department of Labor and Workforce Development. West, Teri (February 14, 2020). "Site work begins for cliffside luxury condo complex in Union City". Annual Estimates of the Resident Population for Incorporated Places of 50,000 or More, Ranked by July 1, 2022 Population: April 1, 2020 to July 1, 2022, United States Census Bureau, released May 2023.
Accessed May 18, 2023. Note that townships (including Edison, Lakewood and Woodbridge, all of which have larger populations) are excluded from these rankings. Finance, Matchday (30 April 2025). "Crystal Palace Financial Results 2023/24". matchdayfinance. Archived from the original on April 15, 2024.
Retrieved April 15, 2024. Union City is a tiny city measuring just over one square mile with about 66,000 residents, making it the most densely populated city in the country, according to the latest U.S. Diehard fans often drive RVs stocked with the latest party gear -- from high-end barbecues to satellite dishes -- to the site.