Clark County, Idaho

 

Founding: 1919
Parent county: Fremont

Namesake: Samuel Clark, early Idaho resident
Seat: Dubois (1919–)

Land area: 1,764 square miles

Population (2020): 790

Population (historic): 1,886 (1920); 1,122 (1930); 1,005 (1940)

Periods of population growth: pre-1920; 1970s; 1990s

Subdivisions: Two cities

National Register listings: Four

Pre-1940 residences (estimated): 130 (23.4%)
Pre-1940 housing survival rate: 25.3%

Farm housing in disrepair (1950): 13.3%

Nonfarm housing in disrepair (1950): 18.3%

Average farmhouse value (1930): $901
Average outbuilding value (1930): $955
Average farmhouse size (1940): 4.2 rooms
Number of farms (1920): 398
Average farm size (1920): 139.9 acres
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Dubois

Namesake: Fred Dubois, Idaho senator

Founding: 1892 (post office)

Population (2020): 511

Population (historic): 590 (1920); 312 (1930); 332 (1940)

Periods of population growth: pre-1920; 1930–1960; 1970–2010
Pre-1940 residences (estimated): 61 (23.2%)
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Outstanding Buildings

1. Humphrey School (c. 1920). I-15 at Humphrey.