WSU Extension > Jefferson County > Loading view. There were no results found. There were no results found. Events Horticulture Building – Jefferson County Fairgrounds Horticulture Building - Jefferson County Fairgrounds 4450 Jackman St, Port Townsend, Estimate for me 98368 Get Directions https://jeffcofairgrounds.org/ Today Upcoming Upcoming Select date. Previous Events Today Next Events Subscribe to calendar Google Calendar iCalendar Outlook 365 Outlook Live Export .ics file Export Outlook .ics file