Loading view. There were no results found. There were no results found. Events Jefferson County Fair Park Jefferson County Fair Park 503 N Jackson Ave Jefferson, WI 53549 United States Get Directions 920-674-7148 https://www.jcfairpark.com/ 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