ZIP Code 99359

99359 is one of Washington's ZIP codes, delivering to addresses in Starbuck, Columbia County.

City: Starbuck
County: Columbia County
State: Washington
Prefix: 993xx

Where this code sits

99359 is part of the 993xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Starbuck.

Starbuck Washington ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 99359 delivers to without sharing its boundary.

509 Area code 509

ZIP codes nearest 99359

The ZIP codes whose reference points sit closest to 99359.
ZIP code	Distance	Delivers to
ZIP code 99136	15 mi	Hay, WA
ZIP code 99328	16 mi	Dayton, WA
ZIP code 99333	17 mi	Hooper, WA
ZIP code 99361	17 mi	Waitsburg, WA
ZIP code 99348	18 mi	Prescott, WA
ZIP code 99371	23 mi	Washtucna, WA
ZIP code 99335	23 mi	Kahlotus, WA
ZIP code 99143	24 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 99359, plotted from its record coordinates.

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

Scope ZIP code 99359. 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.