The county of Clark is located in Illinois and was founded in 1819. There are 16,335 residents in Clark who have access to courthouses in Marshall. 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 3,933 residents in Marshall, which is 3.8 square miles. It was settled in 1835 and is governed by a local government.