Seneca County OH Census Records

1820 Federal U.S. Census MyHeritage

1820 U.S. Federal Census Ancestry

1830 Federal U.S. Census MyHeritage

1830 U.S. Federal Census Ancestry

1840 Federal U.S. Census MyHeritage

1840 U.S. Federal Census Ancestry

1850 Federal U.S. Census MyHeritage

1850 U.S. Federal Census Ancestry

1860 Federal U.S. Census MyHeritage

1860 U.S. Federal Census Ancestry

1870 Federal U.S. Census MyHeritage

1870 U.S. Federal Census Ancestry

1880 Federal U.S. Census MyHeritage

1880 U.S. Federal Census Ancestry

1900 Federal U.S. Census MyHeritage

1900 U.S. Federal Census Ancestry

1910 Federal U.S. Census MyHeritage

1910 U.S. Federal Census Ancestry

1920 Federal U.S. Census MyHeritage

1920 U.S. Federal Census Ancestry

1930 Federal U.S. Census MyHeritage

1930 U.S. Federal Census Ancestry

1940 Federal U.S. Census MyHeritage

1940 U.S. Federal Census Ancestry

1950 United States Federal Census MyHeritage

1950 United States Federal Census Ancestry

Census Records 1850 US Gen Web Archives

Federal Census of 1940, Big Spring Township, Ohio LDS Genealogy

Federal Census of 1940, Green Township in Seneca County, Ohio LDS Genealogy

Federal Census of 1940, Jackson Township in Seneca County, Ohio LDS Genealogy

Federal Census of 1940, London Township in Seneca County, Ohio LDS Genealogy

Federal Census of 1940, Thompson Township in Seneca County, Ohio LDS Genealogy

Federal Population Census of the U.S. 1790-1940 Archives.com

Quadrennial enumeration, 1899, 1903 (Seneca County, Ohio) FamilySearch Library

Seneca County, Ohio 1870 census : an everyname index FamilySearch Library

Seneca County, Ohio census records, 1850 FamilySearch Library

Seneca County, Ohio census records, 1860 FamilySearch Library

Seneca County, Ohio census records, 1870 FamilySearch Library

Seneca County, Ohio census records, 1880 FamilySearch Library

U.S. Federal Census 1790-1950 Ancestry

U.S. Federal Census 1790-1950 MyHeritage

United States Federal Census, 1790-1950 Family Search