Formed 12 Jan 1816, 419 square miles.
Parent counties: Scioto, Gallia, Athens, Ross
Evolution of county from date of formation until it assumed its final form
1 Mar 1816: Erected and organized
1 Mar 1818: Part of Ross attached
11 Jan 1839: Part attached to Ross
7 Feb 1843: Part of Pike attached and part attached to Pike
23 Mar 1850: Diminished by formation of Vinton. Part of Gallia attached
The first county seat in 1816, was in the town of Purgatory, renamed Poplar Row. In 1819, the county seat was moved to Jackson.
Federal Population schedules extant from 1820-1940. (1890 missing) Part of Jackson County was in Washington County, the only one extant for 1800
1820 Manufacturers; 1850 Agricultural; 1850 Industry; 1850 Mortality; 1860 Agricultural, 1860 Mortality; 1870 Agricultural; 1880 Agricultural; 1880 Defective, Dependent, and Delinquent
Townships: Bloomfield, Coal, Franklin, Hamilton, Jackson, Jefferson, Liberty, Lick, Madison, Milton, Scioto, and Washington.
Jana Broglin, CG, OGSF