ZIP Code 99131

99131 is one of Washington's ZIP codes, delivering to addresses in Gifford, Stevens County.

City: Gifford
County: Stevens County
State: Washington
Prefix: 991xx

Where this code sits

99131 is part of the 991xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Gifford.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 99131 delivers to without sharing its boundary.

509 Area code 509

ZIP codes nearest 99131

The ZIP codes whose reference points sit closest to 99131.
ZIP code	Distance	Delivers to
ZIP code 99101	8.6 mi	Addy, WA
ZIP code 99137	9.5 mi	Hunters, WA
ZIP code 99167	9.5 mi	Rice, WA
ZIP code 99138	11 mi	Inchelium, WA
ZIP code 99109	16 mi	Chewelah, WA
ZIP code 99181	19 mi	Valley, WA
ZIP code 99129	21 mi	Fruitland, WA
ZIP code 99173	23 mi	Springdale, 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 99131, plotted from its record coordinates.

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

Scope ZIP code 99131. 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.