Dukes County, Massachusetts

Founding: 1695
Parent county: Unorganized territory

Namesake: The Duke of York
Seat: Edgartown (1683–)

Land area: 103 square miles

Population (2020): 20,600

Population (historic): 3,255 (1790); 3,958 (1840); 3,787 (1870); 4,561 (1900); 4,953 (1930)

Periods of population growth: pre-1790; 1830–1850; 1870s; 1920–1940; 1970–2010

Subdivisions: Two CDPs; seven towns

Pre-1940 residences (estimated): 3,002 (16.8%)
Pre-1940 housing survival rate: 79.8%
Pre-1860 housing survival rate (1940): 39.2%

Farm housing in disrepair (1950): 4.4%

Nonfarm housing in disrepair (1950): 4.4%

Average farmhouse value (1930): $2,393
Average outbuilding value (1930): $1,938
Average farmhouse size (1940): 7.3 rooms
Number of farms (1920): 152
Average farm size (1920): 51.3 acres
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Edgartown

Namesake: Edgar Stuart, Duke of Cambridge

Founding: 1642 (founding); 1671 (incorporation); 1794 (post office)

Population (2020): 5,168

Population (historic): 1,990 (1850); 1,516 (1870); 1,156 (1890); 1,191 (1910); 1,276 (1930)

Periods of population growth: pre-1850; 1940s; 1970–2000
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