Formed 12 Feb 1820, 409 square miles
Parent county: Huron
Evolution of county from date of formation until it assumed its final form
1 Apr 1820: Erected and organized. Seneca attached temporarily until organized
1 Apr 1824: Diminished by organization of Seneca
20 Jun 1835: Diminished by formation of Lucas
15 Mar 1838: Part of Erie attached temporarily until organization
16 Mar 1838: Diminished by organization of Erie
6 Mar 1840: Diminished by formation of Ottawa
23 Mar 1840: Part of Ottawa attached
While Sandusky County has had only one county seat, the name was changed from Lower Sandusky to Fremont.
Federal Population schedules extant from 1820-1940. (1890 missing)
1820 Manufacturers; 1850 Agricultural; 1850 Industry; 1850 Mortality; 1860 Agricultural; 1860 Industry; 1860 Mortality; 1870 Industry; 1880 Agricultural; 1880 Industry
Ballville Green Creek, Jackson, Madison, Rice, Riley, Sandusky, Scott, Townsend, Washington, Woodville, and York.
Archival District: Bowling Green State University, Center for Archival Collections, Jerome Library, Bowling Green Ohio.
Jana Broglin, OGSF