Ingham County, Michigan

Founding: 1838 (declared in 1829)
Parent county: Unorganized territory

Namesake: Samuel Ingham, New Jersey politician
Seat: Mason (1838–)

Land area: 556 square miles

Population (2020): 284,900

Population (historic): 2,498 (1840); 17,435 (1860); 33,676 (1880); 39,818 (1900); 116,587 (1930)

Periods of population growth: pre-1840–1990; 2000–2020

Subdivisions: Five cities; three villages; four CDPs; 16 townships

Pre-1940 residences (estimated): 20,940 (17.1%)
Pre-1940 housing survival rate: 53.8%
Pre-1860 housing survival rate (1940): 11.9%

Farm housing in disrepair (1950): 8.8%

Nonfarm housing in disrepair (1950): 3.8%
Average farmhouse value (1930): $1,910
Average outbuilding value (1930): $1,797

Average farmhouse size (1940): 6.8 rooms
Number of farms (1920): 3,224
Average farm size (1920): 74 acres
Sources of settlement: New York, Ohio, Canada, and Germany

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Mason

Namesake: Stevens Mason, Michigan governor

Founding: 1836 (platting as Mason Center); 1838 (post office); 1865 (incorporation)

Population (2020): 8,283

Population (historic): 363 (1860); 1,809 (1880); 1,828 (1900); 2,575 (1930)

Periods of population growth: 1836–1890; 1910–1990; 2000–2020
Pre-1940 residences (estimated): 664 (19.3%)

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