Addison County, Vermont

Founding: 1785
Parent county: Rutland
Namesake: Joseph Addison, English writer
Seat: Middlebury (1785–)
Land area: 766 square miles
Population (2020): 37,363
Population (historic): 6,420 (1790); 23,583 (1840); 23,484 (1870); 21,912 (1900); 17,952 (1930)
Periods of population growth: pre-1790–1830; 1840s; 1870s; 1940–2020
Subdivisions: One city; six CDPs; 22 towns
Pre-1940 residences (estimated): 4,865 (27.7%)
Pre-1940 housing survival rate: 88.4%
Pre-1860 housing survival rate (1940): 42.3%

Farm housing in disrepair (1950): 8%

Nonfarm housing in disrepair (1950): 8.1%

Average farmhouse value (1930): $1,968
Average outbuilding value (1930): $2,041

Average farmhouse size (1940): 8 rooms

Number of farms (1920): 2,375
Average farm size (1920): 91.7 acres
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Middlebury

 
Namesake: Uncertain—perhaps a reference to the town's central location
Founding: 1761 (founding); 1793 (post office)
Population (2020): 9,152
Population (historic): 395 (1790); 3,162 (1840); 3,086 (1870); 3,045 (1900); 2,968 (1930)
Periods of population growth: pre-1790–1830; 1840s; 1860s; 1890s; 1910–2020
Pre-1940 residences (estimated): 569 (24.6%)
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