Lemhi County, Idaho
Founding: 1869 Parent county: Idaho Namesake: Fort Lemhi, a Mormon missionary settlement within the county Seat: Salmon (1869–) Land area: 4,563 square miles Population (2020): 7,974 Population (historic): 988 (1870); 1,915 (1890); 4,786 (1910); 4,643 (1930) Periods of population growth: pre-1870–1880; 1890–1920; 1930s; 1970s; 1990–2020 Subdivisions: Two cities Pre-1940 residences (estimated): 527 (10.8%) Pre-1940 housing survival rate: 28.2% Farm housing in disrepair (1950): 19.6% Nonfarm housing in disrepair (1950): 22.9% Average farmhouse value (1930): $992 Average outbuilding value (1930): $681 Average farmhouse size (1940): 4 rooms Number of farms (1920): 535 Average farm size (1920): 144.7 acres _________________________________________________________________________________ Salmon Namesake: The Salmon River Founding: 1867 (platting as Salmon City ); 1869 (p...