Middlesex County's estimated 2026 population is 885,050 with a growth rate of 0.19% in the past year according to the most recent United States census data. Middlesex County is the 3rd largest county in New Jersey. The 2010 population was 810,813 and has seen a growth of 9.16% since that time.
Data after 2023 is projected based on recent change
Overall: 39.5 years
Female: 40.4 years
Male: 38.7 years
There are 684,210 adults, (140,558 of whom are seniors) in Middlesex County.
Female: 438,397 (50.3%)
Male: 432,893 (49.7%)
The racial composition of Middlesex County includes 40.95% White, 25.54% Asian, 11.83% other race, 10.43% Black or African American, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 356,769 | 40.95% |
| Asian | 222,566 | 25.54% |
| Other race | 103,095 | 11.83% |
| Black or African American | 90,902 | 10.43% |
| Two or more races | 88,655 | 10.18% |
| Native American | 9,028 | 1.04% |
| Native Hawaiian or Pacific Islander | 275 | 0.03% |
Middlesex County's average per capita income is $64,998. Household income levels show a median of $111,549. The poverty rate stands at 8.59%.
Name | Median | Mean |
|---|---|---|
| Married Families | $153,032 | $184,287 |
| Families | $132,880 | $163,187 |
| Households | $111,549 | $142,003 |
| Non Families | $62,306 | $80,548 |
Average Income
Median Household Income
Poverty Rate