Calhoun County, Michigan

Founding: 1833 (declared in 1829)
Parent county: Unorganized territory

Namesake: John Calhoun, South Carolina senator
Seat: Marshall (1833–)

Land area: 706 square miles

Population (2020): 134,310

Population (historic): 10,599 (1840); 29,564 (1860); 49,315 (1900); 87,043 (1930)

Periods of population growth: pre-1840–1970; 1990s

Subdivisions: Four cities; five villages; two CDPs; 19 townships

Pre-1940 residences (estimated): 15,376 (25.2%)
Pre-1940 housing survival rate: 52.8%
Pre-1860 housing survival rate (1940): 18.8%

Farm housing in disrepair (1950): 10.4%

Nonfarm housing in disrepair (1950): 7.4%
Average farmhouse value (1930): $1,835
Average outbuilding value (1930): $1,601

Average farmhouse size (1940): 7 rooms
Number of farms (1920): 3,646
Average farm size (1920): 82.7 acres
Sources of settlement: New York, Ohio, England, Pennsylvania, Ireland, and Germany
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Marshall

Namesake: John Marshall, Supreme Court chief justice

Founding: 1830 (platting); 1831 (post office); 1836 (incorporation)

Population (2020): 6,822

Population (historic): 1,972 (1850); 4,925 (1870); 4,370 (1900); 5,019 (1930)

Periods of population growth: 1830–1870; 1880–1900; 1910–1970; 1990s
Pre-1940 residences (estimated): 1,509 (42.7%)
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