ZIP Code 98857

98857 is one of Washington's ZIP codes, delivering to addresses in Warden, Grant County.

City: Warden
County: Grant County
State: Washington
Prefix: 988xx

Where this code sits

98857 is part of the 988xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Warden.

Warden Washington ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 98857 delivers to without sharing its boundary.

509 Area code 509

ZIP codes nearest 98857

The ZIP codes whose reference points sit closest to 98857.
ZIP code	Distance	Delivers to
ZIP code 99344	9.1 mi	Othello, WA
ZIP code 98837	16 mi	Moses Lake, WA
ZIP code 99341	17 mi	Lind, WA
ZIP code 98832	22 mi	Marlin, WA
ZIP code 99326	24 mi	Connell, WA
ZIP code 99357	25 mi	Royal City, WA
ZIP code 99343	28 mi	Mesa, WA
ZIP code 99159	30 mi	Odessa, 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 98857, plotted from its record coordinates.

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

Scope ZIP code 98857. 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.