Island County's estimated 2026 population is 86,696 with a growth rate of 0.13% in the past year according to the most recent United States census data. Island County is the 16th largest county in Washington. The 2010 population was 78,700 and has seen a growth of 10.16% since that time.
Data after 2023 is projected based on recent change
The racial composition of Island County includes 79.37% White, 4.86% Asian, and smaller percentages for Black or African American, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
White (79.37%)
Two or more races (9.64%)
Asian (4.86%)
Black or African American (2.73%)
Other race (2.05%)
Native American (1%)
Native Hawaiian or Pacific Islander (0.36%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 68,853 | 79.37% |
| Two or more races | 8,361 | 9.64% |
| Asian | 4,218 | 4.86% |
| Black or African American | 2,367 | 2.73% |
| Other race | 1,774 | 2.05% |
| Native American | 864 | 1% |
| Native Hawaiian or Pacific Islander | 310 | 0.36% |
Married
Widowed
Divorced
Separated
Never Married
Island County's average per capita income is $53,445. Household income levels show a median of $88,358. The poverty rate stands at 6.98%.
Name | Median | Mean |
|---|---|---|
| Married Families | $112,514 | - |
| Families | $105,012 | $125,043 |
| Households | $88,358 | $110,452 |
| Non Families | $54,738 | $75,480 |
Average Income
Median Household Income
Poverty Rate