Harbor Island is a CDP located in Beaufort County, South Carolina. Harbor Island has a 2025 population of 346. Harbor Island is currently growing at a rate of 7.12% annually and its population has increased by 9.49% since the most recent census, which recorded a population of 316 in 2020.
The average household income in Harbor Island is $88,075 with a poverty rate of 4.19%.The median age in Harbor Island is 69.5 years: 69.4 years for males, and 70.1 years for females.
Data after 2023 is projected based on recent change
The racial composition of Harbor Island includes 97.1% White, and smaller percentages for Two or more races and multiracial populations.
Race | Population | Percentage (of total) |
---|---|---|
White | 301 | 97.1% |
Two or more races | 9 | 2.9% |
Married
Widowed
Divorced
Separated
Never Married
Harbor Island's average per capita income is $0. Household income levels show a median of $100,250. The poverty rate stands at 4.19%.
Name | Median | Mean |
---|---|---|
Families | $100,475 | $94,465 |
Married Families | $100,475 | - |
Households | $100,250 | $88,075 |
Non Families | - | $62,290 |
Average Income
Median Household Income
Poverty Rate