ZIP Code 98537

98537 is one of Washington's ZIP codes, delivering to addresses in Cosmopolis, Grays Harbor County.

City: Cosmopolis
County: Grays Harbor County
State: Washington
Prefix: 985xx

Where this code sits

98537 is part of the 985xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Cosmopolis.

Cosmopolis Washington ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 98537 delivers to without sharing its boundary.

ZIP codes nearest 98537

The ZIP codes whose reference points sit closest to 98537.
ZIP code	Distance	Delivers to
ZIP code 98520	2.4 mi	Aberdeen, WA
ZIP code 98550	5.6 mi	Hoquiam, WA
ZIP code 98583	14 mi	Satsop, WA
ZIP code 98563	16 mi	Montesano, WA
ZIP code 98595	16 mi	Westport, WA
ZIP code 98547	18 mi	Grayland, WA
ZIP code 98541	18 mi	Elma, WA
ZIP code 98569	18 mi	Ocean Shores, WA

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 98537, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 98537. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.