ZIP Code 98570

98570 is one of Washington's ZIP codes, delivering to addresses in Onalaska, Lewis County.

City: Onalaska
County: Lewis County
State: Washington
Prefix: 985xx

Where this code sits

98570 is part of the 985xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Onalaska.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 98570 delivers to without sharing its boundary.

ZIP codes nearest 98570

The ZIP codes whose reference points sit closest to 98570.
ZIP code	Distance	Delivers to
ZIP code 98542	3.2 mi	Ethel, WA
ZIP code 98582	4.8 mi	Salkum, WA
ZIP code 98533	6.6 mi	Cinebar, WA
ZIP code 98565	9.5 mi	Napavine, WA
ZIP code 98591	11 mi	Toledo, WA
ZIP code 98585	11 mi	Silver Creek, WA
ZIP code 98596	11 mi	Winlock, WA
ZIP code 98564	12 mi	Mossyrock, 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 98570, plotted from its record coordinates.

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

Scope ZIP code 98570. 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.