Slope County, North Dakota

Founding: 1915 (declared in 1914)
Parent county: Billings

Namesake: The Missouri Slope
Seat: Amidon (1915–)

Land area: 1,215 square miles

Population (2020): 706

Population (historic): 4,940 (1920); 4,150 (1930)

Periods of population growth: 1900–1920

Subdivisions: Two cities

National Register listings: Three

Pre-1940 residences (estimated): 143 (30.8%)
Pre-1940 housing survival rate: 26.9%

Farm housing in disrepair (1950): 36.4%

Nonfarm housing in disrepair (1950): 19.5%

Average farmhouse value (1930): $1,059
Average outbuilding value (1930): $1,112
Average farmhouse size (1940): 4.4 rooms
Number of farms (1920): 778
Average farm size (1920): 281.4 acres
Sources of settlement: Minnesota, Russia, Norway, and Wisconsin
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Amidon

Namesake: Charles Amidon, North Dakota judge

Founding: 1910 (platting); 1911 (post office)

Population (2020): 24

Population (historic): 145 (1920); 141 (1930)

Periods of population growth: 1910s
Pre-1940 residences (estimated): 8 (44.4%)
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Outstanding Buildings

1. *H-T Ranch / Arthur Hidekoper Ranch (1896). 6308 152nd Road. Sand Creek.