Oakland County, Michigan

Founding: 1820 (declared in 1819)
Parent county: Unorganized territory

Namesake: The county's oak forests
Seat: Pontiac (1820–)

Land area: 868 square miles

Population (2020): 1,274,395

Population (historic): 4,911 (1830); 38,261 (1860); 41,547 (1880); 44,792 (1900); 211,251 (1930)

Periods of population growth: 1820–1880; 1890–2020

Subdivisions: 29 cities; ten villages; 25 townships

Pre-1940 residences (estimated): 41,831 (7.8%)
Pre-1940 housing survival rate: 54.5%
Pre-1860 housing survival rate (1940): 19.1%

Farm housing in disrepair (1950): 5.9%

Nonfarm housing in disrepair (1950): 3.5%
Average farmhouse value (1930): $2,959
Average outbuilding value (1930): $3,195

Average farmhouse size (1940): 6.6 rooms
Number of farms (1920): 4,035
Average farm size (1920): 84.4 acres
Sources of settlement: New York, England, Canada, New Jersey, Ireland, and Germany

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Pontiac

Namesake: Pontiac, Ottawa chief

Founding: 1818 (platting); 1820 (post office); 1837 (incorporation)

Population (2020): 61,606

Population (historic): 1,904 (1840); 2,575 (1860); 4,509 (1880); 9,769 (1900); 64,928 (1930)

Periods of population growth: pre-1840; 1850–1870; 1880–1970; 2010s
Pre-1940 residences (estimated): 5,925 (21.8%)

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