Category:Washington state highways

State highways in Washington.

Categories of numbered highways in the United States
National systems	Interstate Highways \| U.S. Routes
State highways	Alabama \| Alaska \| Arizona \| Arkansas \| California \| Colorado \| Connecticut \| Delaware \| Florida \| Georgia \| Hawaii \| Idaho \| Illinois \| Indiana \| Iowa \| Kansas \| Kentucky \| Louisiana \| Maine \| Maryland \| Massachusetts \| Michigan \| Minnesota \| Mississippi \| Missouri \| Montana \| Nebraska \| Nevada \| New Hampshire \| New Jersey \| New Mexico \| New York \| North Carolina \| North Dakota \| Ohio \| Oklahoma \| Oregon \| Pennsylvania \| Rhode Island \| South Carolina \| South Dakota \| Tennessee \| Texas \| Utah \| Vermont \| Virginia \| Washington \| West Virginia \| Wisconsin \| Wyoming
Other areas	District of Columbia \| American Samoa \| Guam \| Puerto Rico \| Virgin Islands