| 98068 Alpental | 425/564 | Kittitas County | Washington (WA) |
| 98922 Cle Elum | 509 | Kittitas County | Washington (WA) |
| 98950 Doris | 509 | Kittitas County | Washington (WA) |
| 98925 Easton | 509 | Kittitas County | Washington (WA) |
| 98926 Ellensburg | 509 | Kittitas County | Washington (WA) |
| 98950 Ellensburg | 509 | Kittitas County | Washington (WA) |
| 98068 Hyak | 425/564 | Kittitas County | Washington (WA) |
| 98934 Kittitas | 509 | Kittitas County | Washington (WA) |
| 98922 Liberty | 509 | Kittitas County | Washington (WA) |
| 98068 North Bend | 425/564 | Kittitas County | Washington (WA) |
| 98941 Rocklyn | 509 | Kittitas County | Washington (WA) |
| 98940 Ronald | 509 | Kittitas County | Washington (WA) |
| 98941 Roslyn | 509 | Kittitas County | Washington (WA) |
| 98068 Snoqualmie | 425/564 | Kittitas County | Washington (WA) |
| 98068 Snoqualmie Pass | 425/564 | Kittitas County | Washington (WA) |
| 98068 Snoqualmie Ps | 425/564 | Kittitas County | Washington (WA) |
| 98943 South Cle Elum | 509 | Kittitas County | Washington (WA) |
| 98922 Suncadia | 509 | Kittitas County | Washington (WA) |
| 98922 Teanaway | 509 | Kittitas County | Washington (WA) |
| 98946 Thorp | 509 | Kittitas County | Washington (WA) |
| 98926 Thrali | 509 | Kittitas County | Washington (WA) |
| 98950 Vantage | 509 | Kittitas County | Washington (WA) |