ZIP Code 98038

98038 is one of Washington's ZIP codes, delivering to addresses in Maple Valley, King County.

City: Maple Valley
County: King County
State: Washington
Prefix: 980xx

Where this code sits

98038 is part of the 980xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Maple Valley.

Maple Valley Washington ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 98038 delivers to without sharing its boundary.

ZIP codes nearest 98038

The ZIP codes whose reference points sit closest to 98038.
ZIP code	Distance	Delivers to
ZIP code 98042	3.2 mi	Kent, WA
ZIP code 98025	4.7 mi	Hobart, WA
ZIP code 98058	5.2 mi	Renton, WA
ZIP code 98010	5.6 mi	Black Diamond, WA
ZIP code 98093	5.7 mi	Federal Way, WA
ZIP code 98031	6.4 mi	Kent, WA
ZIP code 98089	6.8 mi	Kent, WA
ZIP code 98092	6.9 mi	Auburn, 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 98038, plotted from its record coordinates.

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

Scope ZIP code 98038. 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.