What is the population of Union County, NJ?
Union County in New Jersey has a population of 572,549, per Census ACS 5-Year estimates. The median household income is $100,117 and the median age is 39.1.
Context
Counties are the primary administrative subdivisions of states and a stable unit for tracking population. Union County's population reflects everyone within county lines, including residents of incorporated cities and unincorporated areas.
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Union County in New Jersey has a population of 572,549, per Census ACS 5-Year estimates. The median household income is $100,117 and the median age is 39.1.