Cosmopolis, WA ZIP code
The ZIP code for Cosmopolis, Washington is 98537. It is in Grays Harbor County.
- Population in these ZIPs
- 2,820
- Avg. median income
- $79,500population-weighted
- Typical home value
- $326,900population-weighted
- Metro area
- Aberdeen, WA
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Cosmopolis, WA ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 98537 | 2,820 | $79,459 | $326,900 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Cosmopolis
- Raymond 12 mi
- Oakville 14 mi
- Satsop 14 mi
- Aberdeen 17 mi
- Doty 19 mi
- Elma 20 mi
- Tokeland 21 mi
- Bay Center 21 mi
- Littlerock 21 mi
- Rochester 22 mi
- Grayland 22 mi
- South Bend 22 mi
Frequently asked questions
What is the ZIP code for Cosmopolis, WA?
The ZIP code for Cosmopolis, WA is 98537.
What county is Cosmopolis, Washington in?
Cosmopolis ZIP codes are in Grays Harbor County.