ZIP Code 99371

99371 is one of Washington's ZIP codes, delivering to addresses in Washtucna, Adams County.

City: Washtucna
County: Adams County
State: Washington
Prefix: 993xx

Where this code sits

99371 is part of the 993xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Washtucna.

Washtucna Washington ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 99371 delivers to without sharing its boundary.

509 Area code 509

ZIP codes nearest 99371

The ZIP codes whose reference points sit closest to 99371.
ZIP code	Distance	Delivers to
ZIP code 99105	6.5 mi	Benge, WA
ZIP code 99333	8.0 mi	Hooper, WA
ZIP code 99335	15 mi	Kahlotus, WA
ZIP code 99136	18 mi	Hay, WA
ZIP code 99341	22 mi	Lind, WA
ZIP code 99169	22 mi	Ritzville, WA
ZIP code 99359	23 mi	Starbuck, WA
ZIP code 99143	25 mi	Lacrosse, 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 99371, plotted from its record coordinates.

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

Scope ZIP code 99371. 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.