ZIP Code 98938

98938 is one of Washington's ZIP codes, delivering to addresses in Outlook, Yakima County.

City: Outlook
County: Yakima County
State: Washington
Prefix: 989xx

Where this code sits

98938 is part of the 989xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Outlook.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 98938 delivers to without sharing its boundary.

509 Area code 509

ZIP codes nearest 98938

The ZIP codes whose reference points sit closest to 98938.
ZIP code	Distance	Delivers to
ZIP code 98932	4.1 mi	Granger, WA
ZIP code 98944	4.6 mi	Sunnyside, WA
ZIP code 98953	9.2 mi	Zillah, WA
ZIP code 98935	11 mi	Mabton, WA
ZIP code 98930	11 mi	Grandview, WA
ZIP code 98948	11 mi	Toppenish, WA
ZIP code 98921	12 mi	Buena, WA
ZIP code 98951	17 mi	Wapato, 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 98938, plotted from its record coordinates.

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

Scope ZIP code 98938. 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.