Lewis County, Idaho

Founding: 1911
Parent county: Nez Perce

Namesake: Meriwether Lewis, explorer
Seat: Nez Perce (1911–)

Land area: 479 square miles

Population (2020): 3,533

Population (historic): 5,851 (1920); 5,238 (1930)

Periods of population growth: pre-1920; 1950s; 1970s; 1990–2010

Subdivisions: Five cities

National Register listings: Four

Pre-1940 residences (estimated): 437 (22.8%)
Pre-1940 housing survival rate: 32.2%

Farm housing in disrepair (1950): 9.4%

Nonfarm housing in disrepair (1950): 6.9%

Average farmhouse value (1930): $1,098
Average outbuilding value (1930): $891
Number of farms (1920): 606
Average farm size (1920): 212.1 acres
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Nez Perce

Namesake: The Nez Perce tribe

Founding: 1895 (platting); 1896 (post office); 1903 (incorporation)

Population (2020): 458

Population (historic): 599 (1910); 677 (1920); 444 (1930)

Periods of population growth: pre-1910–1920; 1930s; 1950s; 1990s
Pre-1940 residences (estimated): 73 (32.9%)
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