Allendale County, South Carolina

Founding: 1919
Parent counties: Barnwell and Hampton
Namesake: The town of Allendale
Seat: Allendale (1919–)
Land area: 408 square miles
Population (2020): 8,039
Population (historic): 16,098 (1920); 13,294 (1930); 13,040 (1930)
Periods of population growth: pre-1920; 1970–1990
Subdivisions: Four towns
Pre-1940 residences (estimated): 220 (5.4%)
Pre-1940 housing survival rate: 14.4%

Farm housing in disrepair (1950): 37.7%

Nonfarm housing in disrepair (1950): 23%

Average farmhouse value (1930): $451
Average outbuilding value (1930): $248

Average farmhouse size (1940): 4.4 rooms

Number of farms (1920): 1,764
Average farm size (1920): 55.2 acres
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Allendale

 
Namesake: Paul Allen, the town's first postmaster
Founding: 1840s (founding); 1849 (post office); 1873 (platting); 1873 (incorporation)
Population (2020): 2,694
Population (historic): 1,030 (1900); 1,463 (1910); 1,892 (1920); 2,067 (1930)
Periods of population growth: pre-1900–1990
Pre-1940 residences (estimated): 92 (6.3%)
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