How many people live in Grays Harbor County, WA?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 77,900 people living in Grays Harbor County, WA. That makes Grays Harbor County the 19th-most populous county in Washington. It is home to 0.97% of people living in the state.
77.9K
population of Grays Harbor County, WA (2024)
0.97%
County share of the Washington population (2024)
About 77,900 people lived in Grays Harbor County, WA in 2024.
Population estimates, 2000–2024
What are Grays Harbor County, WA’s age demographics?
About 19,100 Grays Harbor County residents are aged 65 and older in 2024. That represents 24.5% of its population. For comparison, the age group represents 17.4% of Washington’s population and 18% in the US overall.
Another 15,100 Grays Harbor County residents, or 19.4% of the population, were children under 18. For comparison, the age group represents 20.9% of Washington’s population and 21.6% in the US overall.
A higher share of Grays Harbor County, WA's population is aged 65 or older than the US as a whole.
Population estimates by age group, (2024)
What are Grays Harbor County, WA’s racial and ethnic demographics?
Non-Hispanic white residents make up 76.9% of the Grays Harbor County, WA population, higher than the national share of 57.5%. Grays Harbor County, WA also has a larger share of people identifying as non-Hispanic American Indian and Alaska Native (3.9%) than the US overall (0.72%).
In contrast, Grays Harbor County’s non-Hispanic Black or African American population accounts for 1.4%, below the 12.6% nationwide, and the Hispanic population makes up 12% of the county, compared with 20% nationally.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.
Grays Harbor County, WA has a higher share of a non-Hispanic white population than Washington as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Grays Harbor County, WA is Aberdeen with about 17,000 residents in 2024.
Cities and towns in Grays Harbor County, WA ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Aberdeen | 17,044 |
| 2. | Hoquiam | 8,771 |
| 3. | Ocean Shores | 7,731 |
| 4. | Montesano | 4,194 |
| 5. | Elma | 3,515 |
| 6. | Westport | 2,341 |
| 7. | McCleary | 2,059 |
| 8. | Cosmopolis | 1,663 |
| 9. | Oakville | 735 |
| 10. | Balance of Grays Harbor County | 29,840 |
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Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.
Page sources
USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.
