City ZIP codes · Washington
Silverdale, WA ZIP Codes
2 ZIP codes use the postal name Silverdale, Washington (Census 2020 ZCTAs and GeoNames postal codes, October 2026), all residential. Silverdale's most populous ZIP code is 98383, with 21,604 people (ACS 2020-2024); 51% of its land is in the city of Silverdale.
- ACS2020-24
- Census2020
- GeoNames2026
Where are Silverdale's ZIP codes?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
All 2 residential ZIP codes of Silverdale
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; 2023 Gazetteer land areas (2020 ZCTAs); town names from simplemaps US ZIP Codes (CC BY 4.0) and GeoNames (CC BY 4.0).
Which counties do Silverdale's ZIP codes reach?
Silverdale's residential ZIP codes lie in Kitsap County.
Which places do Silverdale's ZIP codes cover?
A postal name is not a city limit. By the Census Bureau's places, Silverdale's residential ZIP codes cover Silverdale itself and 1 other place, each listed with the ZIP codes that have at least 5% of their land in it or hold most of the place:
- Bangor Base census-designated 98315
Source: U.S. Census Bureau, 2020 ZCTA-to-place relationship file (shares of land).
Which first three digits do Silverdale's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Silverdale starts with 983.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 983 | Tacoma, WA (SCF 983) | 2 | 81 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.