Statewide Records that exist for Ohio 1800, 1810, 1820, 1830, 1840, 1850, 1860, 1870, 1880, 1890 (fragment, see below), 1900, 1910, 1910, 1920 and 1940.The 1800 census exist for Washington County only. The 1810 census exist for Washington County only, all others burned in 1812. The 1820 census Franklin and Wood counties are missing, The 1890 population census exists only for Cincinnati (Hamilton County) and Wayne Township (Clinton County)
There are Industry and Agriculture Schedules (lists do not exist for all counties for each year) availible for the years 1850, 1860, 1870 and 1880. The Mortality Schedules for the years 1850, 1860, 1870 and 1880. Union Veterans Schedules were conducted in 1890. Census of surviving Union veterans of the Civil War or their widows, listing service information, any service-connected disability, and current address.
State Schedules: Ohio had no state census records. There are scattered county census records taken for militia purposes, plus personal and real estate tax lists, all of which have been incorrectly referred to as state census records. There are quadrennial enumerations taken every four years from 1803 to 1911 to determine voting districts. These include males (white only prior to 1863) over twenty-one years of age residing in a county, showing address, race, occupation, and whether a freeholder of land. Not all counties are available for each four year period, nor is each township for each county included. A list of the available records can be obtained from the Ohio Historical Society, where the enumerations are either on microfilm or in original form. This repository also holds “enumerations of school-aged youth” for selected years and counties. Contact the society for details.