Hancock County, Illinois

Founding: 1825
Parent county: Unorganized territory

Namesake: John Hancock, Founding Father
Seat: Montebello (1825–1833); Carthage (1833–)

Land area: 794 square miles

Population (2020): 17,620

Population (historic): 483 (1830); 14,652 (1850); 35,935 (1870); 32,215 (1900); 26,420 (1930)

Periods of population growth: pre-1830–1870; 1890s; 1970s

Subdivisions: Six cities; one town; eight villages; 24 townships

Pre-1940 residences (estimated): 3,535 (38.2%)
Pre-1940 housing survival rate: 44%
Pre-1860 housing survival rate (1940): 13.6%

Farm housing in disrepair (1950): 9.6%

Nonfarm housing in disrepair (1950): 10.9%

Average farmhouse value (1930): $1,888
Average outbuilding value (1930): $1,561

Average farmhouse size (1940): 6.4 rooms
Number of farms (1920): 3,463
Average farm size (1920): 105.7 acres
Sources of settlement: Ohio, Germany, Pennsylvania, Kentucky, Virginia, New York, and England
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Carthage

Namesake: The city of Carthage

Founding: 1833 (platting); 1833 (post office); 1837 (incorporation)

Population (2020): 2,490

Population (historic): 1,448 (1870); 1,654 (1890); 2,373 (1910); 2,240 (1930)

Periods of population growth: pre-1870–1910; 1920–1970; 1990s
Pre-1940 residences (estimated): 447 (31.9%)
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