In 2018, Union County, NJ had a population of 558k people with a median age of 38.8 and a median household income of $82,186. Between 2017 and 2018 the population of Union County, NJ declined from 563,892 to 558,067, a -1.03% decrease and its median household income grew from $77,326 to $82,186, a 6.29% increase.
The 5 largest ethnic groups in Union County, NJ are White (Non-Hispanic) (39%), Black or African American (Non-Hispanic) (20.3%), Other (Hispanic) (15.4%), White (Hispanic) (14.1%), and Asian (Non-Hispanic) (5.47%). 44.1% of the households in Union County, NJ speak a non-English language at home as their primary language, and 86.1% of the residents in Union County, NJ are U.S. citizens.
In 2018, the median property value in Union County, NJ was $375,400, and the homeownership rate was 57.6%. Most people in Union County, NJ drove alone to work, and the average commute time was 30.4 minutes. The average car ownership in Union County, NJ was 2 cars per household.