In 2019, Union County, NJ had a population of 556k people with a median age of 39 and a median household income of $80,339. Between 2018 and 2019 the population of Union County, NJ declined from 558,067 to 556,341, a −0.309% decrease and its median household income declined from $82,186 to $80,339, a −2.25% decrease.
The 5 largest ethnic groups in Union County, NJ are White (Non-Hispanic) (37.8%), Black or African American (Non-Hispanic) (19.9%), Other (Hispanic) (17.4%), White (Hispanic) (12.4%), and Asian (Non-Hispanic) (5.3%). 46% of the households in Union County, NJ speak a non-English language at home as their primary language.
85.5% of the residents in Union County, NJ are U.S. citizens.
The largest universities in Union County, NJ are Kean University (3,401 degrees awarded in 2020), Union County College (1,670 degrees), and Lincoln Technical Institute-Union (746 degrees).
In 2019, the median property value in Union County, NJ was $380,100, and the homeownership rate was 57.9%. Most people in Union County, NJ drove alone to work, and the average commute time was 31 minutes. The average car ownership in Union County, NJ was 2 cars per household.
Union County, NJ borders Essex County, NJ, Hudson County, NJ, Middlesex County, NJ, Morris County, NJ, Somerset County, NJ, and Richmond County, NY.