Jefferson County International, Port Townsend, WA (0s9)
Correctly identified first by Dave Brown.
A popular north Puget Sound airport, there are many reasons pilots like "JeffCo"....one of the best airport restaurants around (the Spruce Goose Cafe), a budding vintage aircraft collection (Port Townsend Aero Museum) and it reportedly makes an easy place to clear US customs. Of course, there is that little TFR just off the east end of the runway (over Indian Island), so watch where you are.