ZIP Code 98860

98860 is one of Washington's ZIP codes, delivering to addresses in Wilson Creek, Grant County.

City: Wilson Creek
County: Grant County
State: Washington
Prefix: 988xx

Where this code sits

98860 is part of the 988xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Wilson Creek.

Wilson Creek Washington ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 98860 delivers to without sharing its boundary.

509 Area code 509

ZIP codes nearest 98860

The ZIP codes whose reference points sit closest to 98860.
ZIP code	Distance	Delivers to
ZIP code 98853	5.6 mi	Stratford, WA
ZIP code 99115	9.5 mi	Coulee City, WA
ZIP code 99135	11 mi	Hartline, WA
ZIP code 98832	13 mi	Marlin, WA
ZIP code 98851	15 mi	Soap Lake, WA
ZIP code 98823	21 mi	Ephrata, WA
ZIP code 99103	24 mi	Almira, WA
ZIP code 98837	24 mi	Moses Lake, 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 98860, plotted from its record coordinates.

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

Scope ZIP code 98860. 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.