ZIP Codes in Silverdale, WA
Silverdale uses 2 ZIP codes, all in Kitsap County. Pick one below for details, or look up the full nine-digit ZIP+4 for a specific street address.
All 2 Silverdale ZIP codes
| ZIP | Type | County | Population |
|---|---|---|---|
| 98315 | standard | Kitsap | 6,112 |
| 98383 | standard | Kitsap | 21,604 |
Finding a ZIP+4 in Silverdale
Knowing which of these 2 ZIP codes covers an address only gets you partway. The four-digit extension identifies the specific delivery point — typically one side of one block. Two houses facing each other on the same Silverdale street almost always have different ZIP+4 codes even though they share all five leading digits.
Appending ZIP+4 to a mailing list?
Upload a CSV of Silverdale addresses and download it complete.