Formed 30 Dec 1818, 460 square miles
Parent county: Champaign
Evolution of county from date of formation until it assumed its final form
1 Mar 1818: Erected and organized
1 Apr 1820: Diminished by formation of Union and other counties from Indian Lands. Part of Indian Lands attached
11 Apr 1883: Logan-Shelby line altered
15 Mar 1888: Logan-Auglaize line altered
For two years, 1818-1820, Belleville was the county seat of Logan County. In 1820, the county seat was moved to Bellefontaine.
Federal Population schedules extant from 1820-1940. (1890 missing)
1820 Manufacturers; 1850 Agricultural; 1850 Industry; 1850 Mortality; 1860 Agricultural, 1860 Mortality; 1870 Agricultural; 1880 Agricultural; 1880 Defective, Dependent, and Delinquent
Bloomfield, Bokes Creek, Harrison, Jefferson, Lake, Liberty, McArthur, Miami, Monroe, Perry, Pleasant, Richland, Rushcreek, Stokes, Union, Washington, and Zane.
Jana Broglin, OGSF