ZIP Code 98378

98378 is one of Washington's ZIP codes, delivering to addresses in Retsil, Kitsap County.

City: Retsil
County: Kitsap County
State: Washington
Prefix: 983xx

Where this code sits

98378 is part of the 983xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Retsil.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 98378 delivers to without sharing its boundary.

ZIP codes nearest 98378

The ZIP codes whose reference points sit closest to 98378.
ZIP code	Distance	Delivers to
ZIP code 98366	1.1 mi	Port Orchard, WA
ZIP code 98337	2.0 mi	Bremerton, WA
ZIP code 98314	2.0 mi	Bremerton, WA
ZIP code 98353	3.4 mi	Manchester, WA
ZIP code 98384	3.7 mi	South Colby, WA
ZIP code 98310	4.0 mi	Bremerton, WA
ZIP code 98312	4.4 mi	Bremerton, WA
ZIP code 98367	5.5 mi	Port Orchard, 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 98378, plotted from its record coordinates.

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

Scope ZIP code 98378. 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.