Middlesex County's estimated 2026 population is 918,119 with a growth rate of 1.55% in the past year according to the most recent United States census data. Middlesex County is the 2nd largest county in New Jersey. The 2010 population was 810,813 and has seen a growth of 13.23% since that time.
Data after 2023 is projected based on recent change
The racial composition of Middlesex County includes 44.23% White, 25.07% Asian, 10.48% other race, 10.41% Black or African American, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.
White (44.23%)
Asian (25.07%)
Other race (10.48%)
Black or African American (10.41%)
Two or more races (8.86%)
Native American (0.92%)
Native Hawaiian or Pacific Islander (0.03%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 381,022 | 44.23% |
| Asian | 215,990 | 25.07% |
| Other race | 90,298 | 10.48% |
| Black or African American | 89,702 | 10.41% |
| Two or more races | 76,297 | 8.86% |
| Native American | 7,925 | 0.92% |
| Native Hawaiian or Pacific Islander | 301 | 0.03% |
Married
Widowed
Divorced
Separated
Never Married
Middlesex County's average per capita income is $63,389. Household income levels show a median of $109,028. The poverty rate stands at 8.5%.
Name | Median | Mean |
|---|---|---|
| Married Families | $150,072 | $178,667 |
| Families | $130,331 | $158,434 |
| Households | $109,028 | $138,274 |
| Non Families | $61,243 | $79,031 |
Average Income
Median Household Income
Poverty Rate