20 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 98366 | Port Orchard | 37,437 |
| 98370 | Poulsbo | 32,862 |
| 98312 | Bremerton | 32,288 |
| 98367 | Port Orchard | 31,186 |
| 98311 | Bremerton | 27,527 |
| 98110 | Bainbridge Island | 24,681 |
| 98383 | Silverdale | 22,764 |
| 98310 | Bremerton | 21,692 |
| 98346 | Kingston | 9,973 |
| 98337 | Bremerton | 8,785 |
| 98315 | Silverdale | 6,045 |
| 98380 | Seabeck | 5,582 |
| 98359 | Olalla | 4,889 |
| 98392 | Suquamish | 3,203 |
| 98340 | Hansville | 2,692 |
| 98314 | Bremerton | 1,565 |
| 98342 | Indianola | 1,362 |
| 98345 | Keyport | 284 |
| 98364 | Port Gamble | 57 |
| 98353 | Manchester | 14 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 20 ZCTAs in Kitsap County, Washington (US Census).