The Union County Courthouse is located in Jonesboro, Illinois. The twin cities, Anna and Jonesboro, account for most of the population in Union County. Notable natives include businessman George M. C. Fisher and cartoonist Frank Willard. Union County has many great dining options; some of our favorites are Great Boars of Fire, Sinisi's on Main, and Taqueria Pequena. Union County is also the home to several outstanding wineries set against some of the prettiest scenery in the state. Winery options include Alto Pass, Von Jacob, Blue Sky, Star View, Pomona Winery, and many more.