ZIP Code 98027

98027 is one of Washington's ZIP codes, delivering to addresses in Issaquah, King County.

City: Issaquah
County: King County
State: Washington
Prefix: 980xx

Where this code sits

98027 is part of the 980xx range, the group of codes handled by one mail processing centre. Issaquah is served by 2 ZIP codes in total; the full list, with the county each falls in, is on the Issaquah page.

Issaquah Washington ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 98027 delivers to without sharing its boundary.

ZIP codes nearest 98027

The ZIP codes whose reference points sit closest to 98027.
ZIP code	Distance	Delivers to
ZIP code 98029	4.2 mi	Issaquah, WA
ZIP code 98050	4.6 mi	Preston, WA
ZIP code 98059	4.9 mi	Renton, WA
ZIP code 98025	5.5 mi	Hobart, WA
ZIP code 98075	6.2 mi	Sammamish, WA
ZIP code 98058	6.3 mi	Renton, WA
ZIP code 98024	7.5 mi	Fall City, WA
ZIP code 98056	8.0 mi	Renton, 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 98027, plotted from its record coordinates.

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

Scope ZIP code 98027. 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.