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Washington 9 |
| Termini | From the US-Canadian border in Sumas and the junction on BC-11 in Whatcom County, to the Snoqualmie-King County line near Woodinville. |
| Length | 98.1 miles |
| "Where does it go?" | It runs from the Canadian border at Sumas along the foothills of the Cascades, through the towns of Sedro Woolley, Arlington, Lake Stevens, Snohomish, and into Woodinville. |

Highways of
Washington State - State Route 9
Washington State Highways - SR-9
Wikipedia -
Washington State Route 9
Washington
State Legislation - Route 9