ZIP Code 98303

98303 is one of Washington's ZIP codes, delivering to addresses in Anderson Island, Pierce County.

City: Anderson Island
County: Pierce County
State: Washington
Prefix: 983xx

Where this code sits

98303 is part of the 983xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Anderson Island.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 98303 delivers to without sharing its boundary.

253 Area code 253

ZIP codes nearest 98303

The ZIP codes whose reference points sit closest to 98303.
ZIP code	Distance	Delivers to
ZIP code 98351	3.8 mi	Longbranch, WA
ZIP code 98516	4.6 mi	Olympia, WA
ZIP code 98327	5.4 mi	Dupont, WA
ZIP code 98388	5.6 mi	Steilacoom, WA
ZIP code 98433	6.3 mi	Tacoma, WA
ZIP code 98467	7.2 mi	University Place, WA
ZIP code 98333	7.3 mi	Fox Island, WA
ZIP code 98498	7.4 mi	Lakewood, 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 98303, plotted from its record coordinates.

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

Scope ZIP code 98303. 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.