Henderson County is located in the western part of Illinois and is part of the Burlington-Fort Madison, IA-IL Metropolitan Statistical Area. The county seat is Oquawka.

Henderson County is governed by a seven-member Board of Commissioners. The board is elected from seven districts within the county. The board is responsible for setting policy and overseeing the county's budget.

The county is served by two school districts: West Central Community Unit School District 235 and Union Community Unit School District 304.

Henderson County is home to several state parks and recreational areas, including Big River State Forest, Johnson-Sauk Trail State Recreation Area, and Mississippi Palisades State Park.

The county is also home to several historic sites, including the Oquawka Historic District, the Henderson County Courthouse, and the Henderson County Jail.

For the most up-to-date and in-depth information, please check the public records links below.