Formed 24 Mar 1803, 608 square miles
Parent county: Adams
Evolution of county from date of formation until it assumed its final form
1 May 1803: Erected and organized
29 Dec 1804: Part of Gallia annexed
1 Feb 1815: Diminished by formation of Pike
21 Dec 1815: Part of Lawrence attached temporarily until organization
1 Mar 1816: Diminished by formation of Jackson
1 Mar 1817: Diminished by organization of Lawrence. Part attached to Lawrence
1 Mar 1818: Part of Lawrence attached
1 Mar 1826: Part of Lawrence attached
Scioto County has had two county seats. The first in Alexandria, then in Portsmouth by 1816.
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
Bloom, Brush Creek, Clay, Green, Harrison, Jefferson, Madison, Morgan, Nile, Porter, Rarden, Rush, Union, Valley, Vernon, and Washington.
Jana Broglin, CG, OGSF