As the oldest 4-H fair in the United States, the Rock County 4-H Fair in Janesville, WI has plenty to offer each and every visitor. From the numerous animals to the carnival and every unique exhibit in between, the Rock County 4-H Fair allows visitors one special week a year to experience the many projects and learn from the county's youth. The Rock County 4-H Fair is constantly evolving; showcasing amazing nationally known entertainers on its main stage and a variety of activities for the whole family to enjoy year after year. Grandstand acts are free with paid gate admission, with some preferred seating available for an extra cost.