20 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 98366 | Port Orchard | 37,692 |
| 98312 | Bremerton | 34,273 |
| 98370 | Poulsbo | 32,997 |
| 98367 | Port Orchard | 32,203 |
| 98311 | Bremerton | 27,947 |
| 98110 | Bainbridge Island | 24,607 |
| 98310 | Bremerton | 22,170 |
| 98383 | Silverdale | 22,047 |
| 98346 | Kingston | 9,337 |
| 98337 | Bremerton | 7,872 |
| 98315 | Silverdale | 5,931 |
| 98380 | Seabeck | 5,187 |
| 98359 | Olalla | 4,691 |
| 98392 | Suquamish | 3,412 |
| 98340 | Hansville | 2,834 |
| 98342 | Indianola | 1,398 |
| 98314 | Bremerton | 1,358 |
| 98345 | Keyport | 272 |
| 98353 | Manchester | 0 |
| 98364 | Port Gamble | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 20 ZCTAs in Kitsap County, Washington (US Census).