Knox County, Maine

Founding: 1860
Parent counties: Lincoln and Waldo
Namesake: Henry Knox, Continental Amy general
Seat: Rockland (1860–)
Land area: 365 square miles
Population (2020): 40,607
Population (historic): 32,716 (1860); 32,863 (1880); 30,406 (1900); 27,693 (1930)
Periods of population growth: pre-1860; 1970–1990
Subdivisions: One city; one plantation; two territories; two CDPs; 16 towns
Pre-1940 residences (estimated): 8,042 (33%)
Pre-1940 housing survival rate: 80.9%
Pre-1860 housing survival rate (1940): 41.4%

Farm housing in disrepair (1950): 13.8%

Nonfarm housing in disrepair (1950): 8.4%

Average farmhouse value (1930): $1,234
Average outbuilding value (1930): $695

Average farmhouse size (1940): 6.9 rooms

Number of farms (1920): 1,427
Average farm size (1920): 23.9 acres
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Rockland

 
Namesake: Uncertain—likely a descriptive name
Founding: 1770s (founding); 1824 (post office); 1848 (incorporation)
Population (2020): 6,936
Population (historic): 5,052 (1850); 7,074 (1870); 8,174 (1890); 8,174 (1910); 9,075 (1930)
Periods of population growth: pre-1850–1860; 1920s
Pre-1940 residences (estimated): 1,723 (42%)
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