Guernsey County, Ohio
Founding: 1810 Parent counties: Belmont and Muskingum Namesake: Guernsey, one of the Channel Islands Seat: Cambridge (1810–) Land area: 522 square miles Population (2020): 38,438 Population (historic): 3,051 (1810); 30,438 (1850); 27,197 (1880); 34,425 (1900); 41,486 (1930) Periods of population growth: pre-1810–1850; 1870–1920; 1950s; 1970s; 1990s Subdivisions: One city; eight villages; three CDPs; 19 townships Pre-1940 residences (estimated): 5,741 (30%) Pre-1940 housing survival rate: 48.9% Pre-1860 housing survival rate (1940): 19.4% Farm housing in disrepair (1950): 11% Nonfarm housing in disrepair (1950): 9.4% Average farmhouse value (1930): $953 Average outbuilding value (1930): $665 Average farmhouse size (1940): 5.8 rooms Number of farms (1920): 3,079 Average farm size (1920): 81.1 acres Sources of settlement: Pennsylvania, Ireland, V...