Grays Harbor County's 2026 population is estimated at 78,539, reflecting a 0.41% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Grays Harbor County is the 19th largest county in Washington. The 2010 population was 72,849 and has grown 7.81% since 2010.
Data after 2023 is projected based on recent change
Overall: 44.7 years
Female: 45.9 years
Male: 43.4 years
There are 61,836 adults, (17,980 of whom are seniors) in Grays Harbor County.
Female: 37,578 (48.8%)
Male: 39,475 (51.2%)
The racial composition of Grays Harbor County includes 78.48% White, 4.87% other race, 4.2% Native American, and smaller percentages for Black or African American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 60,470 | 78.48% |
| Two or more races | 7,110 | 9.23% |
| Other race | 3,749 | 4.87% |
| Native American | 3,240 | 4.2% |
| Black or African American | 1,137 | 1.48% |
| Asian | 1,037 | 1.35% |
| Native Hawaiian or Pacific Islander | 310 | 0.4% |
Grays Harbor County 's average per capita income is $46,246. Household income levels show a median of $64,414. The poverty rate stands at 15.31%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $93,195 | $106,769 |
| Families | $81,816 | $96,604 |
| Households | $64,414 | $82,833 |
| Non Families | $40,320 | $57,241 |
Average Income
Median Household Income
Poverty Rate