As the oldest 4-H fair in the United States, the Rock County 4-H Fair in Janesville offers visitors one special week to experience the animals, carnival, live music, and every unique exhibit in between. The fair is constantly evolving, showcasing amazing nationally known entertainers on its main stage and a variety of activities for the whole family to enjoy. All grandstand acts are free with paid gate admission, though some have preferred seating options for an additional fee (online purchase required).