Fallon County, Montana

Founding: 1913
Parent county: Custer
Namesake: Benjamin O'Fallon, Indian agent
Seat: Baker (1913–)
Land area: 1,621 square miles
Population (2020): 3,049
Population (historic): 4,548 (1920); 4,568 (1930)
Periods of population growth: pre-1920; 1950–1970; 2000–2020
Subdivisions: One city; one town
National Register listings: Three
Pre-1940 residences (estimated): 339 (21.2%)
Pre-1940 housing survival rate: 25.1%

Farm housing in disrepair (1950): 9.6%

Nonfarm housing in disrepair (1950): 10%

Average farmhouse value (1930): $792
Average outbuilding value (1930): $797

Average farmhouse size (1940): 4.3 rooms

Number of farms (1920): 758
Average farm size (1920): 226.7 acres
Sources of settlement: Minnesota, Wisconsin, Iowa, South Dakota, and Russia
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Baker

 
Namesake: A.G. Baker, railroad engineer
Founding: 1908 (platting); 1908 (post office)
Population (2020): 1,802
Population (historic): 1,067 (1920); 1,212 (1930); 1,304 (1940)
Periods of population growth: pre-1920–1970; 2000–2020
Pre-1940 residences (estimated): 216 (21.9%)
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