Washington State has twelve species/ subspecies of native salmonids. Over the last weekend I caught my the twelfth and final species of native salmonid that I hadn't yet encountered in Washington State
All five species of Pacific salmon are native to Washington State.
Chinook Salmon: Puget Sound
Coho Salmon: Puget Sound
Chum Salmon: Puget Sound
Sockeye Salmon: Olympic Peninsula
Pink Salmon: Puget Sound
Two subspecies of rainbow/ redband trout are native to the state of Washington.
Coastal Rainbow trout: Olympic Peninsula
Coastal Cutthroat: Puget Sound
Westslope Cutthroat: Yakima River watershed
A lot of fish in Washington like to come in twos and as such there are two species of char native to Washington State, although genetic testing is typically needed to tell them apart. Southern Dolly Varden the rarer of the two are only found in the few isolated stream resident populations above barrier falls.
Bull Trout: Olympic Peninsula
Southern Dolly Varden: Olympic Peninsula
The only other salmonid native to Washington are the Mountain Whitefish, a close relative of trout, salmon and char.
Unfortunately unlike Wyoming and California, Washington does not have an official program to recognize anglers for catching the state's native salmonids. The next step of my quest in Washington would be to complete the Washington "Anadromous Challenge". In other words to catch all of the native salmonids in their anadromous form. To complete this I still need catch some coastal steelhead and Columbia basin redband steelhead and sea-run bull trout. I will have to save that one for another time though....