Sac County, Iowa was founded in 1851 covering an area of 541 square miles , its population sits slightly lower than 10 thousand individuals whose primary activity centered on agricultural sector but nevertheless some businesses have begun developing over recent years providing job opportunities for locals . Sac City serves as county’s most populous town hosting multiple attractions like sports facilities public artworks while there are also swimming pool public library more adding additional layer to recreational appeal . Outdoor activities include biking camping skiing fishing bird watching all taking place around Raccoon State Park wildlife preserve where amazing wildlife can be observed up close making it great tourist destination .