ZIP Code 98356

98356 is one of Washington's ZIP codes, delivering to addresses in Morton, Lewis County.

City: Morton
County: Lewis County
State: Washington
Prefix: 983xx

Where this code sits

98356 is part of the 983xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Morton.

Morton Washington ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 98356 delivers to without sharing its boundary.

ZIP codes nearest 98356

The ZIP codes whose reference points sit closest to 98356.
ZIP code	Distance	Delivers to
ZIP code 98336	7.4 mi	Glenoma, WA
ZIP code 98585	11 mi	Silver Creek, WA
ZIP code 98355	11 mi	Mineral, WA
ZIP code 98564	11 mi	Mossyrock, WA
ZIP code 98533	15 mi	Cinebar, WA
ZIP code 98330	15 mi	Elbe, WA
ZIP code 98582	18 mi	Salkum, WA
ZIP code 98304	18 mi	Ashford, 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 98356, plotted from its record coordinates.

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

Scope ZIP code 98356. 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.