ZIP Code 99357

99357 is one of Washington's ZIP codes, delivering to addresses in Royal City, Grant County.

City: Royal City
County: Grant County
State: Washington
Prefix: 993xx

Where this code sits

99357 is part of the 993xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Royal City.

Royal City Washington ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 99357 delivers to without sharing its boundary.

509 Area code 509

ZIP codes nearest 99357

The ZIP codes whose reference points sit closest to 99357.
ZIP code	Distance	Delivers to
ZIP code 99349	16 mi	Mattawa, WA
ZIP code 99321	16 mi	Beverly, WA
ZIP code 98824	17 mi	George, WA
ZIP code 98950	19 mi	Vantage, WA
ZIP code 98837	21 mi	Moses Lake, WA
ZIP code 98848	23 mi	Quincy, WA
ZIP code 98823	25 mi	Ephrata, WA
ZIP code 98857	25 mi	Warden, 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 99357, plotted from its record coordinates.

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

Scope ZIP code 99357. 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.