Formed 12 Feb 1820, 532 square miles
Parent counties: Logan, Delaware, Wood
Evolution of county from date of formation until it assumed its final form
1 Apr 1820: Erected and attached to Wood until organization
1 Mar 1828: Organized
3 Feb 1845: Diminished by formation of Wyandot
Federal Population schedules extant from 1820-1940. (1890 missing) In 1820, Hancock was part of Wood County.Wood County's census for that year was lost.
1850 Agricultural; 1850 Industry; 1850 Mortality; 1860 Agricultural; 1860 Mortality; 1870 Agricultural; 1870 Industry; 1880 Agricultural; 1880 Defective, Dependent, and Delinquent
Allen, Amanda, Biglick, Blanchard, Cass, Delaware, Eagle, Jackson, Liberty, Madison, Marion, Orange, Pleasant, Portage, Union, Van Buren, and Washington.
Archival District: Bowling Green State University, Center for Archival Collections, Jerome Library, Bowling Green Ohio.
Jana Broglin, OGSF