Kankakee County, Illinois

Founding: 1853
Parent counties: Iroquois and Will

Namesake: The Kankakee River
Seat: Kankakee (1853–)

Land area: 677 square miles

Population (2020): 107,502

Population (historic): 15,412 (1860); 25,047 (1880); 37,154 (1900); 50,095 (1930)

Periods of population growth: pre-1860–1980; 1990–2010

Subdivisions: Two cities; 18 villages; 17 townships

Pre-1940 residences (estimated): 8,007 (17.5%)
Pre-1940 housing survival rate: 53.2%
Pre-1860 housing survival rate (1940): 12.1%

Farm housing in disrepair (1950): 7.7%

Nonfarm housing in disrepair (1950): 6.5%

Average farmhouse value (1930): $2,373
Average outbuilding value (1930): $3,052

Average farmhouse size (1940): 6.5 rooms
Number of farms (1920): 2,480
Average farm size (1920): 147.8 acres
Sources of settlement: Canada, Germany, New York, Indiana, Ohio, and Ireland
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Kankakee

Namesake: The Kankakee River

Founding: 1853 (platting); 1853 (post office); 1855 (incorporation)

Population (2020): 24,052

Population (historic): 5,651 (1880); 13,595 (1900); 20,620 (1930)

Periods of population growth: pre-1880–1960; 1970–1990
Pre-1940 residences (estimated): 3,810 (34.4%)
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