Union County, NJ — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
572,549
Male
282,307
49.3%
Female
290,242
50.7%
Median Age
39.1 yrs
Avg Household Size
2.8
Foreign Born
32.9%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher26.3%
High School or Higher44.5%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
2.2%
Disability
0.0%
Non-English Home
9.4%
Married
40.2%
Union County, NJ has a population of 572,549 according to 2023 Census Bureau estimates. The median age is 39.1 years. The largest racial or ethnic group is White at 41.7% of the population. 26.3% of residents hold a bachelor's degree or higher. 32.9% of residents are foreign-born.