Sussex County's estimated 2025 population is 148,594 with a growth rate of 0.78% in the past year according to the most recent United States census data. Sussex County is the 17th largest county in New Jersey. The 2010 population was 148,859 and has seen a growth of -0.18% since that time.
Data after 2023 is projected based on recent change
The racial composition of Sussex County includes 84.79% White, 3.01% other race, and smaller percentages for Black or African American, Asian, Native American and multiracial populations.
White (84.79%)
Two or more races (7.78%)
Other race (3.01%)
Black or African American (2.34%)
Asian (1.88%)
Native American (0.19%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 123,044 | 84.79% |
| Two or more races | 11,290 | 7.78% |
| Other race | 4,371 | 3.01% |
| Black or African American | 3,400 | 2.34% |
| Asian | 2,733 | 1.88% |
| Native American | 279 | 0.19% |
Married
Widowed
Divorced
Separated
Never Married
Sussex County's average per capita income is $68,332. Household income levels show a median of $114,316. The poverty rate stands at 5.41%.
Name | Median | Mean |
|---|---|---|
| Married Families | $148,170 | $179,633 |
| Families | $134,187 | $163,495 |
| Households | $114,316 | $143,320 |
| Non Families | $66,946 | $86,984 |
Average Income
Median Household Income
Poverty Rate