ZIP Code 99034

99034 is one of Washington's ZIP codes, delivering to addresses in Tumtum, Stevens County.

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

Where this code sits

99034 is part of the 990xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Tumtum.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 99034 delivers to without sharing its boundary.

509 Area code 509

ZIP codes nearest 99034

The ZIP codes whose reference points sit closest to 99034.
ZIP code	Distance	Delivers to
ZIP code 99013	3.1 mi	Ford, WA
ZIP code 99173	8.2 mi	Springdale, WA
ZIP code 99026	9.9 mi	Nine Mile Falls, WA
ZIP code 99040	11 mi	Wellpinit, WA
ZIP code 99110	12 mi	Clayton, WA
ZIP code 99006	14 mi	Deer Park, WA
ZIP code 99148	14 mi	Loon Lake, WA
ZIP code 99029	14 mi	Reardan, 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 99034, plotted from its record coordinates.

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

Scope ZIP code 99034. 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.