ZIP Code 99323

99323 is one of Washington's ZIP codes, delivering to addresses in Burbank, Walla Walla County.

City: Burbank
County: Walla Walla County
State: Washington
Prefix: 993xx

Where this code sits

99323 is part of the 993xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Burbank.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 99323 delivers to without sharing its boundary.

509 Area code 509

ZIP codes nearest 99323

The ZIP codes whose reference points sit closest to 99323.
ZIP code	Distance	Delivers to
ZIP code 99363	7.7 mi	Wallula, WA
ZIP code 99302	9.6 mi	Pasco, WA
ZIP code 99301	10 mi	Pasco, WA
ZIP code 99337	11 mi	Kennewick, WA
ZIP code 99336	13 mi	Kennewick, WA
ZIP code 99360	14 mi	Touchet, WA
ZIP code 99338	18 mi	Kennewick, WA
ZIP code 99352	19 mi	Richland, 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 99323, plotted from its record coordinates.

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

Scope ZIP code 99323. 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.