The county of Whiteside is located in Illinois and was founded in 1836. There are 58,498 residents in Whiteside who have access to courthouses in Morrison, Sterling. In general, each county has a full set of courts, from traffic court to superior and appellate court; supreme courts are usually located in the state capital. Illinois is part of the 7th federal circuit court as well.
There are 15,370 residents in Sterling, which is 6.1 square miles.