ZIP Code 98643

98643 is one of Washington's ZIP codes, delivering to addresses in Rosburg, Wahkiakum County.

City: Rosburg
County: Wahkiakum County
State: Washington
Prefix: 986xx

Where this code sits

98643 is part of the 986xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Rosburg.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 98643 delivers to without sharing its boundary.

ZIP codes nearest 98643

The ZIP codes whose reference points sit closest to 98643.
ZIP code	Distance	Delivers to
ZIP code 98621	4.6 mi	Grays River, WA
ZIP code 98638	7.7 mi	Naselle, WA
ZIP code 98647	11 mi	Skamokawa, WA
ZIP code 97103	12 mi	Astoria, OR
ZIP code 98614	14 mi	Chinook, WA
ZIP code 97121	16 mi	Hammond, OR
ZIP code 98612	16 mi	Cathlamet, WA
ZIP code 97146	17 mi	Warrenton, OR

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 98643, plotted from its record coordinates.

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

Scope ZIP code 98643. 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.