The county of Henderson is located in Illinois and was founded in 1841. There are 7,331 residents in Henderson who have access to courthouses in Oquawka. 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 1,371 residents in Oquawka, which is 1.9 square miles and 562ft above sea level.