Sussex County's estimated 2026 population is 148,681 with a growth rate of 0.42% 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 -0.12% since that time.
Data after 2023 is projected based on recent change
Overall: 43.8 years
Female: 45.1 years
Male: 42.8 years
There are 117,388 adults, (27,656 of whom are seniors) in Sussex County.
Female: 72,333 (49.6%)
Male: 73,474 (50.4%)
The racial composition of Sussex County includes 82.27% White, 4.18% other race, and smaller percentages for Asian, Black or African American, Native American and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 119,960 | 82.27% |
| Two or more races | 13,732 | 9.42% |
| Other race | 6,101 | 4.18% |
| Asian | 2,917 | 2% |
| Black or African American | 2,701 | 1.85% |
| Native American | 396 | 0.27% |
Sussex County's average per capita income is $69,308. Household income levels show a median of $116,186. The poverty rate stands at 5.54%.
Name | Median | Mean |
|---|---|---|
| Married Families | $151,836 | $181,540 |
| Families | $137,107 | $165,340 |
| Households | $116,186 | $144,531 |
| Non Families | $71,538 | $91,364 |
Average Income
Median Household Income
Poverty Rate