ZIP Code 99158

99158 is one of Washington's ZIP codes, delivering to addresses in Oakesdale, Whitman County.

City: Oakesdale
County: Whitman County
State: Washington
Prefix: 991xx

Where this code sits

99158 is part of the 991xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Oakesdale.

Oakesdale Washington ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 99158 delivers to without sharing its boundary.

509 Area code 509

ZIP codes nearest 99158

The ZIP codes whose reference points sit closest to 99158.
ZIP code	Distance	Delivers to
ZIP code 99104	4.6 mi	Belmont, WA
ZIP code 99176	6.8 mi	Thornton, WA
ZIP code 99128	8.4 mi	Farmington, WA
ZIP code 99174	10 mi	Steptoe, WA
ZIP code 99130	10 mi	Garfield, WA
ZIP code 99033	10 mi	Tekoa, WA
ZIP code 99170	10 mi	Rosalia, WA
ZIP code 99018	13 mi	Latah, 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 99158, plotted from its record coordinates.

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

Scope ZIP code 99158. 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.