Clinton County, Illinois

Founding: 1824
Parent counties: Bond, Fayette, and Washington

Namesake: DeWitt Clinton, New York politician
Seat: Carlyle (1824–)

Land area: 474 square miles

Population (2020): 36,899

Population (historic): 2,330 (1830); 5,139 (1850); 16,285 (1870); 19,824 (1900); 21,369 (1930)

Periods of population growth: pre-1830–1880; 1890–1920; 1930s; 1950–2010

Subdivisions: Three cities; 12 villages; 15 townships

Pre-1940 residences (estimated): 2,470 (15.7%)
Pre-1940 housing survival rate: 45.6%
Pre-1860 housing survival rate (1940): 9.7%

Farm housing in disrepair (1950): 9.6%

Nonfarm housing in disrepair (1950): 6.5%

Average farmhouse value (1930): $1,201
Average outbuilding value (1930): $1,211

Average farmhouse size (1940): 5.5 rooms
Number of farms (1920): 1,794
Average farm size (1920): 122.5 acres
Sources of settlement: Germany, Missouri, and Ohio
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Carlyle

Namesake: Unclear

Founding: 1818 (platting); 1819 (post office); 1837 (incorporation)

Population (2020): 3,253

Population (historic): 289 (1850); 1,364 (1870); 1,784 (1890); 1,982 (1910); 2,078 (1930)

Periods of population growth: pre-1850–1880; 1890–1990
Pre-1940 residences (estimated): 300 (19.6%)
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Outstanding Buildings

1. Staehr Farm (c. 1860). 5200 Shoal Creek Road. Germantown. Greek Revival.
2. John Santel Farm (c. 1850). 5871 Albers Road. Looking Glass. Razed.
3. Edward Copple Farm (c. 1865). 10221 Copple Road. Meridian. Italianate. Razed.
4. Nymphas Crocker House (c. 1865). 15905 Old State Road. Wade. Italianate. Razed.
5. Charles Morlock House (c. 1875). 16535 Old State Road. Wade. Italianate.
6. David Sharp House (c. 1875). 11732 Slant Road. Wade. Italianate/Stick.

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