ZIP Code 99101

99101 is one of Washington's ZIP codes, delivering to addresses in Addy, Stevens County.

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

Where this code sits

99101 is part of the 991xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Addy.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 99101 delivers to without sharing its boundary.

509 Area code 509

ZIP codes nearest 99101

The ZIP codes whose reference points sit closest to 99101.
ZIP code	Distance	Delivers to
ZIP code 99131	8.6 mi	Gifford, WA
ZIP code 99109	9.0 mi	Chewelah, WA
ZIP code 99167	9.1 mi	Rice, WA
ZIP code 99181	17 mi	Valley, WA
ZIP code 99137	17 mi	Hunters, WA
ZIP code 99114	17 mi	Colville, WA
ZIP code 99138	19 mi	Inchelium, WA
ZIP code 99141	21 mi	Kettle Falls, 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 99101, plotted from its record coordinates.

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

Scope ZIP code 99101. 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.