ZIP Code 99349

99349 is one of Washington's ZIP codes, delivering to addresses in Mattawa, Grant County.

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

Where this code sits

99349 is part of the 993xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Mattawa.

Mattawa Washington ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 99349 delivers to without sharing its boundary.

509 Area code 509

ZIP codes nearest 99349

The ZIP codes whose reference points sit closest to 99349.
ZIP code	Distance	Delivers to
ZIP code 99321	10 mi	Beverly, WA
ZIP code 98950	14 mi	Vantage, WA
ZIP code 99357	16 mi	Royal City, WA
ZIP code 98824	24 mi	George, WA
ZIP code 98938	30 mi	Outlook, WA
ZIP code 98944	30 mi	Sunnyside, WA
ZIP code 98936	31 mi	Moxee, WA
ZIP code 98953	32 mi	Zillah, 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 99349, plotted from its record coordinates.

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

Scope ZIP code 99349. 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.