The Federal Census of 1870 contains schedules for Vienna Township, Trumbull County, Ohio. The population of the Township in 1870 was 1,132. The population of Ohio was 2,665,260. The total population of the United States in 1870 was 38,555,983, although this number was contested.
The United States Constitution requires that a population census be undertaken every ten years to determine the appropriation of seats in the United States House of Representatives and for the collection of taxes. The United States was the first nation to legislate a regularly held census. This ninth census taken in the United States recorded the population as of June 1, 1870.
For More Information
"1870 Overview." United States Census Bureau, Department of Commerce, Washington, DC.
"1870 Census: Instructions to Assistant Marshals." Integrated Public Use Microdata Series, Minnesota Population Center, University of Minnesota, Minneapolis, MN.