Sussex County's estimated 2026 population is 283,047 with a growth rate of 2.13% in the past year according to the most recent United States census data. Sussex County is the 2nd largest county in Delaware. The 2010 population was 197,883 and has seen a growth of 43.04% since that time.
Data after 2023 is projected based on recent change
Overall: 51.9 years
Female: 53.6 years
Male: 50.1 years
There are 209,370 adults, (77,249 of whom are seniors) in Sussex County.
Female: 131,608 (51.5%)
Male: 124,018 (48.5%)
The racial composition of Sussex County includes 74.15% White, 9.94% Black or African American, 4.92% other race, and smaller percentages for Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 189,534 | 74.15% |
| Black or African American | 25,415 | 9.94% |
| Two or more races | 23,058 | 9.02% |
| Other race | 12,569 | 4.92% |
| Asian | 3,244 | 1.27% |
| Native American | 1,765 | 0.69% |
| Native Hawaiian or Pacific Islander | 41 | 0.02% |
Sussex County's average per capita income is $46,674. Household income levels show a median of $81,497. The poverty rate stands at 10.87%.
Name | Median | Mean |
|---|---|---|
| Married Families | $110,457 | $141,195 |
| Families | $97,693 | $127,885 |
| Households | $81,497 | $109,282 |
| Non Families | $47,920 | $64,493 |
Average Income
Median Household Income
Poverty Rate