Middlesex County's estimated 2025 population is 868,681 with a growth rate of 0.29% 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 7.14% 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
Asian
Other race
Black or African American
Two or more races
Native American
Native Hawaiian or Pacific Islander
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