| ZIP Code | ZIP Code Place Name | County | ZIP Code Type |
|---|---|---|---|
| 98312 | Bremerton | Kitsap County | Standard |
| 98320 | Brinnon | Jefferson County | Standard |
| 98380 | Seabeck | Kitsap County | Standard |
| 98502 | Olympia | Thurston County | Standard |
| 98524 | Allyn | Mason County | Standard |
| 98528 | Belfair | Mason County | Standard |
| 98541 | Elma | Grays Harbor County | Standard |
| 98546 | Grapeview | Mason County | Standard |
| 98548 | Hoodsport | Mason County | Standard |
| 98555 | Lilliwaup | Mason County | Standard |
| 98557 | Mccleary | Grays Harbor County | Standard |
| 98560 | Matlock | Mason County | Standard |
| 98563 | Montesano | Jefferson County | Standard |
| 98584 | Shelton | Mason County | Standard |
| 98588 | Tahuya | Mason County | Standard |
| 98592 | Union | Mason County | Standard |