Washington 243
| Termini | WA-26 south of I-90 and west of Royal City to WA-24 at the Vernita Bridge over the Columbia River. |
| Length | 28.2 miles |
| "Where does it go?" | Runs along the eastern shore of the Columbia river, connecting WA-26 and WA-24 via Beverly and Mattawa. |

Highways of
Washington State - State Route 243
Washington State Highways -
SR-243
Washington
State Legislation - Route 243