Jasper County, Illinois

Founding: 1834 (declared in 1831)
Parent counties: Clay and Crawford

Namesake: William Jasper, South Carolina soldier
Seat: Newton (1835–)

Land area: 495 square miles

Population (2020): 9,287

Population (historic): 1,472 (1840); 8,364 (1860); 14,515 (1880); 20,160 (1900); 12,809 (1930)

Periods of population growth: pre-1840–1900; 1930s; 1970s

Subdivisions: One city; six villages; 11 townships

National Register listings: One

Pre-1940 residences (estimated): 919 (21.1%)
Pre-1940 housing survival rate: 27.6%
Pre-1860 housing survival rate (1940): 1%

Farm housing in disrepair (1950): 11.3%

Nonfarm housing in disrepair (1950): 10.7%

Average farmhouse value (1930): $800
Average outbuilding value (1930): $650

Average farmhouse size (1940): 5.4 rooms
Number of farms (1920): 2,762
Average farm size (1920): 97.1 acres
Sources of settlement: Indiana, Ohio, Kentucky, and Germany
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Newton

Namesake: John Newton, South Carolina soldier

Founding: 1833 (post office); 1835 (platting); 1885 (incorporation)

Population (2020): 2,777

Population (historic): 1,168 (1880); 1,630 (1900); 2,076 (1930)

Periods of population growth: pre-1880–1910; 1930–1980
Pre-1940 residences (estimated): 305 (20.4%)
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Outstanding Buildings

1. *St. Joseph Catholic Church (1901). 16987 North 200th Road. Grove. Gothic Revival.
2. *Valentine Kraus Farm (c. 1870). East 500th Road, east of North 2125th Road. Sainte Marie. Razed.