Clermont County, Ohio
Founding: 1800 Parent county: Hamilton Naming: A traditional name—French for "clear mountain" Seats: Williamsburg (1800–1823); New Richmond (1823–1824); Batavia (1824–) Land area: 452 square miles Population (2020): 208,601 Population (historic): 9,965 (1810); 30,455 (1850); 36,713 (1880); 31,610 (1900); 29,786 (1930) Periods of population growth: pre-1810–1880; 1920–2020 Subdivisions: Two cities; 11 villages; eight CDPs; 14 townships Pre-1940 residences (estimated): 6,200 (7.6%) Pre-1940 housing survival rate: 56.4% Pre-1860 housing survival rate (1940): 29.7% Farm housing in disrepair (1950): 7.7% Nonfarm housing in disrepair (1950): 7.3% Average farmhouse value (1930): $1,476 Average outbuilding value (1930): $963 Average farmhouse size (1940): 6 rooms Number of farms (1920): 3,803 Average farm s ize (1920): 60.6 acres Sources of settlement: ...