Ogle County, Illinois
Lat/Long: 42.0333, -89.3167
The Illinois General Assembly created Ogle County in 1836. Commissioners appointed for the purpose chose a site for the county seat, which became the town of Oregon City. Oregon City was renamed Oregon in 1843.
An Act to Establish Certain Counties; History of Ogle County, Illinois (Chicago: H. F. Kett, 1878), 300, 312; James N. Adams, comp., Illinois Place Names (Springfield: Illinois State Historical Society, 1989), 463-64.