Louisa County, Virginia

Founding: 1742
Parent county: Hanover
Namesake: Louise of Great Britain, Queen of Denmark
Seat: Louisa (1750s–)
Land area: 496 square miles
Population (2020): 37,596
Population (historic): 8,467 (1790); 15,433 (1840); 16,332 (1870); 16,517 (1900); 14,309 (1930)
Periods of population growth: pre-1790–1800; 1810–1830; 1840s; 1870s; 1910s; 1950–2020
Subdivisions: Two towns; one CDP
Pre-1940 residences (estimated): 932 (5.3%)
Pre-1940 housing survival rate: 38.1%
Pre-1860 housing survival rate (1940): 27.4%

Farm housing in disrepair (1950): 22.6%

Nonfarm housing in disrepair (1950): 29.5%

Average farmhouse value (1930): $978
Average outbuilding value (1930): $460

Average farmhouse size (1940): 5.4 rooms

Number of farms (1920): 2,088
Average farm size (1920): 45.5 acres
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Louisa

 
Namesake: Louise of Great Britain, Queen of Denmark
Founding: circa 1757 (founding); 1800 (post office); 1873 (incorporation)
Population (2020): 1,987
Population (historic): 315 (1880); 261 (1900); 301 (1930)
Periods of population growth: pre-1880; 1900s; 1920–1940; 1950–2020
Pre-1940 residences (estimated): 112 (12.7%)
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