Lake County, Colorado

Founding: 1861
Parent county: Unorganized territory

Namesake: The Twin Lakes
Seat: Oro City (1861–1863); Lourette (1863–1866); Dayton (1866–1868); Granite (1868–1879); Leadville (1879–)

Land area: 384 square miles

Population (2020): 7,436

Population (historic): 522 (1870); 14,603 (1890); 10,600 (1910); 4,899 (1930)

Periods of population growth: 1870s; 1890s; 1930–1950; 1960s; 1990s; 2010s

Subdivisions: One city; two CDPs

National Register listings: 10

Pre-1940 residences (estimated): 1,491 (31%)
Pre-1940 housing survival rate: 57%

Farm housing in disrepair (1950): 21.4%

Nonfarm housing in disrepair (1950): 15%

Average farmhouse value (1930): $401
Average outbuilding value (1930): $572
Average farmhouse size (1940): 3.7 rooms
Number of farms (1920): 30
Average farm size (1920): 171.7 acres
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Leadville

Namesake: The region's lead deposits

Founding: 1877 (platting); 1877 (post office); 1878 (incorporation)

Population (2020): 2,633

Population (historic): 14,820 (1880); 12,455 (1900); 3,771 (1930)

Periods of population growth: 1870s; 1890s; 1930s; 2010s
Pre-1940 residences (estimated): 1,029 (63.8%)
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