Washtenaw County, Michigan
Founding: 1826 (declared in 1822) Parent county: Wayne Namesake: An Ojibwe word referencing the Grand River Seat: Ann Arbor (1827–) Land area: 706 square miles Population (2020): 372,258 Population (historic): 4,042 (1830); 28,567 (1850); 41,434 (1870); 47,761 (1900); 65,530 (1930) Periods of population growth: pre-1830–1900; 1910–2020 Subdivisions: Six cities; two villages; one CDP; 20 townships Pre-1940 residences (estimated): 17,804 (11.9%) Pre-1940 housing survival rate: 74% Pre-1860 housing survival rate (1940): 22.7% Farm housing in disrepair (1950): 4.1% Nonfarm housing in disrepair (1950): 5.5% Average farmhouse value (1930): $2,928 Average outbuilding value (1930): $2,718 Average farmhouse size (1940): 7.3 rooms Number of farms (1920): 3,550 Average farm size (1920): 89.8 acres Sources of settlement: New York, Germany, Ireland, Canada,...