ZIP codes in Grays Harbor County
22 ZIPs touch Grays Harbor County, Washington. The blue dashed line is the county border; orange ZIPs reach into it.
22
ZIP codes
7
cross the county line
93,622
people in these ZIPs
39
counties in WA
Most people
Grays Harbor County ZIP list
More counties in Washington
- Cowlitz County12
- Douglas County13
- Ferry County10
- Franklin County7
- Garfield County2
- Grant County19
- Island County8
- Jefferson County9
- King County123
- Kitsap County28
- Kittitas County12
- Klickitat County16
Questions people actually ask
How many ZIP codes are in Grays Harbor County, Washington?
22 ZIP codes reach into Grays Harbor County. 7 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Grays Harbor County has the most people?
98520 (Aberdeen) has about 24,888 residents, the most of any ZIP touching Grays Harbor County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Grays Harbor County and another county?
Yes. ZIP codes follow mail routes, not county lines. Rows marked with a percentage show how much of that ZIP’s land is in Grays Harbor County. For one address, pin the exact spot on the ZIP finder to see its county.
Where does this list come from?
ZIP areas and their county overlaps come from the Census Bureau’s 2020 ZIP Code Tabulation Area to county relationship file. PO Box ZIPs have no area, so each is placed in the county of the ZIP area nearest the town it serves.
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Updated 2026-11-10 · Where the data comes from