| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Stabler | city | Washington | United States | 45.80833 | -121.90639 | 1072 | 1497 |
| Staley | city | Washington | United States | 46.66972 | -117.1475 | 2598 | 10457 |
| Stampede | city | Washington | United States | 47.26306 | -121.36528 | 2814 | 156 |
| Stanwood | city | Washington | United States | 48.24139 | -122.36944 | 9 | 5272 |
| Star Lake | city | Washington | United States | 47.35806 | -122.29028 | 400 | 92776 |
| Starbuck | city | Washington | United States | 46.51972 | -118.12778 | 800 | 77 |
| Starr | city | Washington | United States | 47.99528 | -119.87833 | 784 | 450 |
| Startup | city | Washington | United States | 47.86806 | -121.73917 | 200 | 907 |
| State Camp | city | Washington | United States | 46.25 | -123.32 | 209 | 540 |
| Stateline | city | Washington | United States | 46.00111 | -118.41333 | 793 | 14907 |
| Stayman | city | Washington | United States | 47.76583 | -120.08861 | 600 | 517 |
| Stehekin | city | Washington | United States | 48.30944 | -120.65528 | 1095 | 61 |
| Steilacoom | city | Washington | United States | 47.17 | -122.60139 | 252 | 38097 |
| Stella | city | Washington | United States | 46.19083 | -123.11861 | 200 | 1490 |
| Stentz Spring | city | Washington | United States | 46.22806 | -117.57806 | 5400 | 52 |
| Steptoe | city | Washington | United States | 47.00611 | -117.355 | 2398 | 471 |
| Sterling | city | Washington | United States | 48.49222 | -122.27944 | 36 | 21882 |
| Stevenson | city | Washington | United States | 45.69583 | -121.88333 | 196 | 1317 |
| Stillwater | city | Washington | United States | 47.68306 | -121.91889 | 98 | 7916 |
| Stimson | city | Washington | United States | 47.09056 | -123.23056 | 400 | 2085 |
| Stimson Crossing | city | Washington | United States | 48.12306 | -122.18194 | 85 | 34136 |
| Straight Point | city | Washington | United States | 45.6975 | -121.39472 | 200 | 1307 |
| Strandell | city | Washington | United States | 48.91222 | -122.35694 | 98 | 5297 |
| Stratford | city | Washington | United States | 47.42722 | -119.42056 | 1361 | 734 |
| Striebels Corner | city | Washington | United States | 47.805 | -122.56694 | 187 | 8415 |
| Stringtown | city | Washington | United States | 46.30639 | -123.9775 | 0 | 1431 |
| Stringtown | city | Washington | United States | 47.31806 | -117.06167 | 3205 | 395 |
| Stuart | city | Washington | United States | 47.68861 | -121.94722 | 98 | 7916 |
| Stuck | city | Washington | United States | 47.28278 | -122.2275 | 200 | 54006 |
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