| Locality | Post Code |
|---|---|
| Covington, King | 98042 |
| Crown Hill, King | 98117 |
| Crystal Mountain, King | 98022 |
| Cumberland, King | 98022 |
| Denny Creek, King | 98045 |
| Des Moines, King | 98148, 98198 |
| Dockton, King | 98070 |
| Duvall, King | 98019 |
| Duwamish, King | 98188 |
| Earlmount, King | 98052 |
| East Union, King | 98122 |
| Eastgate, King | 98007 |
| Enumclaw, King | 98022 |
| Fairwood, King | 98058 |
| Fall City, King | 98024 |
| Federal Way, King | 98001, 98003, 98023 |
| Forest Park, King | 98155 |
| Fort Lawton, King | 98199 |
| Four Corners, King | 98038 |
| Greenwater, King | 98022 |
| Greenwood, King | 98103 |
| Grotto, King | 98288 |
| Hazelwood, King | 98056 |
| Highlands, King | 98056 |
| Hobart, King | 98025 |
| Houghton, King | 98033 |