ZIP Code 99031

99031 is one of Washington's ZIP codes, delivering to addresses in Spangle, Spokane County.

City: Spangle
County: Spokane County
State: Washington
Prefix: 990xx

Where this code sits

99031 is part of the 990xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Spangle.

Spangle Washington ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 99031 delivers to without sharing its boundary.

509 Area code 509

ZIP codes nearest 99031

The ZIP codes whose reference points sit closest to 99031.
ZIP code	Distance	Delivers to
ZIP code 99036	8.5 mi	Valleyford, WA
ZIP code 99012	9.2 mi	Fairfield, WA
ZIP code 99039	9.6 mi	Waverly, WA
ZIP code 99004	10 mi	Cheney, WA
ZIP code 99020	11 mi	Marshall, WA
ZIP code 99030	12 mi	Rockford, WA
ZIP code 99223	13 mi	Spokane, WA
ZIP code 99023	13 mi	Mica, 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 99031, plotted from its record coordinates.

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

Scope ZIP code 99031. 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.