Boundary County, Idaho
Founding: 1915 Parent county: Bonner Namesake: The county's location along the Canada–United States border Seat: Bonner's Ferry (1915–) Land area: 1,269 square miles Population (2020): 12,056 Population (historic): 4,474 (1920); 4,555 (1930); 5,987 (1940) Periods of population growth: pre-1920–1940; 1960–2020 Subdivisions: Two cities Pre-1940 residences (estimated): 618 (11.4%) Pre-1940 housing survival rate: 29.6% Farm housing in disrepair (1950): 21.5% Nonfarm housing in disrepair (1950): 20.5% Average farmhouse value (1930): $765 Average outbuilding value (1930): $688 Average farmhouse size (1940): 4.1 rooms Number of farms (1920): 373 Average farm size (1920): 54.5 acres _________________________________________________________________________________ Bonner's Ferry Namesake: Edwin Bonner, operator of a ferry crossing the Kootenay River Founding: 1892 (post office); 1...