ZIP Code 98540

98540 is one of Washington's ZIP codes, delivering to addresses in East Olympia, Thurston County.

City: East Olympia
County: Thurston County
State: Washington
Prefix: 985xx

Where this code sits

98540 is part of the 985xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to East Olympia.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 98540 delivers to without sharing its boundary.

ZIP codes nearest 98540

The ZIP codes whose reference points sit closest to 98540.
ZIP code	Distance	Delivers to
ZIP code 98509	0.0 mi	Lacey, WA
ZIP code 98513	2.2 mi	Olympia, WA
ZIP code 98503	4.9 mi	Lacey, WA
ZIP code 98576	6.7 mi	Rainier, WA
ZIP code 98597	6.7 mi	Yelm, WA
ZIP code 98558	7.5 mi	Mckenna, WA
ZIP code 98501	8.5 mi	Olympia, WA
ZIP code 98327	8.9 mi	Dupont, 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 98540, plotted from its record coordinates.

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

Scope ZIP code 98540. 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.