Union County's estimated 2026 population is 604,983 with a growth rate of 0.52% in the past year according to the most recent United States census data. Union County is the 7th largest county in New Jersey. The 2010 population was 537,336 and has seen a growth of 12.59% since that time.
Data after 2023 is projected based on recent change
Overall: 39.1 years
Female: 40.1 years
Male: 37.9 years
There are 443,030 adults, (87,277 of whom are seniors) in Union County.
Female: 293,097 (50.6%)
Male: 286,193 (49.4%)
The racial composition of Union County includes 39.36% White, 20.41% other race, 19.92% Black or African American, 5.63% Asian, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 228,008 | 39.36% |
| Other race | 118,213 | 20.41% |
| Black or African American | 115,397 | 19.92% |
| Two or more races | 81,706 | 14.1% |
| Asian | 32,637 | 5.63% |
| Native American | 3,233 | 0.56% |
| Native Hawaiian or Pacific Islander | 96 | 0.02% |
Union County's average per capita income is $59,112. Household income levels show a median of $103,202. The poverty rate stands at 9.18%.
Name | Median | Mean |
|---|---|---|
| Married Families | $156,383 | $206,084 |
| Families | $125,330 | $171,270 |
| Households | $103,202 | $149,595 |
| Non Families | $59,397 | $80,952 |
Average Income
Median Household Income
Poverty Rate