ZIP Code 99040

99040 is one of Washington's ZIP codes, delivering to addresses in Wellpinit, Stevens County.

City: Wellpinit
County: Stevens County
State: Washington
Prefix: 990xx

Where this code sits

99040 is part of the 990xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Wellpinit.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 99040 delivers to without sharing its boundary.

509 Area code 509

ZIP codes nearest 99040

The ZIP codes whose reference points sit closest to 99040.
ZIP code	Distance	Delivers to
ZIP code 99013	8.7 mi	Ford, WA
ZIP code 99034	11 mi	Tumtum, WA
ZIP code 99173	12 mi	Springdale, WA
ZIP code 99029	13 mi	Reardan, WA
ZIP code 99129	13 mi	Fruitland, WA
ZIP code 99122	16 mi	Davenport, WA
ZIP code 99026	19 mi	Nine Mile Falls, WA
ZIP code 99137	20 mi	Hunters, 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 99040, plotted from its record coordinates.

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

Scope ZIP code 99040. 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.