| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Cicero | city | Washington | United States | 48.27 | -122.01 | 830 | |
| Cinebar | city | Washington | United States | 46.60 | -122.53 | 938 | |
| Circle H Mobile Home Park | city | Washington | United States | 47.22 | -121.99 | 830 | |
| Circle H Mobile Home Park | city | Washington | United States | 47.94 | -122.07 | 200 | |
| Circle K Mobile Home Park | city | Washington | United States | 47.39 | -122.25 | 111 | |
| Cispus | city | Washington | United States | 46.49 | -122.12 | 889 | |
| City Center Mobile Home Park | city | Washington | United States | 48.08 | -123.11 | 177 |