Washington records
Western Terrestrial Garter Snake in Washington
HarmlessThamnophis elegans

Yes. The Western Terrestrial Garter Snake has been recorded in 33 Washington counties. It is non-venomous (harmless). Slender body with three light stripes running the length of a darker back.
Washington counties with Western Terrestrial Garter Snake records
33 listedSee the full Western Terrestrial Garter Snake profile or all snakes in Washington.