Macoupin County, Illinois

Founding: 1829
Parent county: Madison

Namesake: Macoupin Creek
Seat: Carlinville (1829–)

Land area: 863 square miles

Population (2020): 44,967

Population (historic): 1,990 (1830); 12,355 (1850); 32,726 (1870); 42,256 (1900); 48,703 (1930)

Periods of population growth: pre-1830–1920; 1960–1980; 1990s

Subdivisions: Eight cities; two towns; 17 villages; 26 townships

National Register listings: Eight

Pre-1940 residences (estimated): 5,945 (27.4%)
Pre-1940 housing survival rate: 49.2%
Pre-1860 housing survival rate (1940): 10.7%

Farm housing in disrepair (1950): 13%

Nonfarm housing in disrepair (1950): 7.3%

Average farmhouse value (1930): $1,359
Average outbuilding value (1930): $1,210

Average farmhouse size (1940): 6 rooms
Number of farms (1920): 3,771
Average farm size (1920): 105.3 acres
Sources of settlement: Germany, Kentucky, Missouri, Ohio, Pennsylvania, Tennessee, England, and Ireland
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Carlinville

Namesake: Thomas Carlin, Illinois governor

Founding: 1828 (platting); 1830 (post office); 1865 (incorporation)

Population (2020): 5,710

Population (historic): 3,117 (1880); 3,502 (1900); 4,144 (1930)

Periods of population growth: pre-1880–1920; 1930–1970; 1990–2010
Pre-1940 residences (estimated): 969 (39.8%)
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Outstanding Buildings

1. Charles Towse Farm (c. 1855). 9316 Rinaker Road. Bird. Greek Revival.
2. *John Anderson House (1883/1892). 920 West Breckinridge Street. Carlinville. Italianate/Stick.
3. Couch House (c. 1870). 12639 State Route 108. Carlinville. Italianate.
4. *Josiah Whipple House (c. 1850). 218 Outer Road. Chesterfield. Greek Revival.
5. *David Coop Log House. 19738 Coop's Mound Road. Shaw's Point. Razed.
6. *John Binney Farm (c. 1865). 23428 Double Arch Road. Staunton. Italianate.
7. *John Ryan Farm (1858–1860). 18029 County Line Road. Virden. Italianate.