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U.S. ZIP Codes Database 2026

Search by ZIP code, city, county, or state and find clear postal details with maps, time zones, and area code data.

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Kitsap County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Kitsap County.

County State ZIP Code City Area Codes
Kitsap County WA 98061 Rollingbay 206
Kitsap County WA 98110 Bainbridge Island 206, 360, 564
Kitsap County WA 98310 Bremerton 206, 360, 564
Kitsap County WA 98311 Bremerton 360, 564
Kitsap County WA 98312 Bremerton 360, 564
Kitsap County WA 98314 Bremerton 360, 564
Kitsap County WA 98315 Silverdale 360, 564
Kitsap County WA 98322 Burley 360, 564
Kitsap County WA 98337 Bremerton 360, 564
Kitsap County WA 98340 Hansville 360, 564
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About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.