Greene County, Illinois

Founding: 1821
Parent county: Madison

Namesake: Nathanael Greene, Continental Army general
Seat: Carrollton (1821–)

Land area: 543 square miles

Population (2020): 11,985

Population (historic): 7,674 (1830); 16,093 (1860); 23,010 (1880); 23,402 (1900); 20,417 (1930)

Periods of population growth: pre-1830–1890; 1910s

Subdivisions: Four cities; five villages; 13 townships

Pre-1940 residences (estimated): 2,725 (42.6%)
Pre-1940 housing survival rate: 49.6%
Pre-1860 housing survival rate (1940): 11%

Farm housing in disrepair (1950): 7.8%

Nonfarm housing in disrepair (1950): 7.9%

Average farmhouse value (1930): $1,455
Average outbuilding value (1930): $1,224

Average farmhouse size (1940): 5.7 rooms
Number of farms (1920): 2,143
Average farm size (1920): 120.6 acres
Sources of settlement: Kentucky, Missouri, Tennessee, Ohio, Ireland, and Germany
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Carrollton

Namesake: Charles Carroll, Maryland politician

Founding: 1821 (platting); 1822 (post office); 1861 (incorporation)

Population (2020): 2,485

Population (historic): 1,934 (1880); 2,355 (1900); 2,075 (1930)

Periods of population growth: pre-1880–1900; 1920–1970; 1990s
Pre-1940 residences (estimated): 522 (44%)
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Outstanding Buildings

1. Bluffdale / James Eldred House (1861). 100th Road, east of Hillview–Eldred Road. Bluffdale. Greek Revival/Italianate.
2. John Russell House (1828). 355 650th Road. Bluffdale.
3. Thomas Purl House (c. 1840). 72 125th Road. Carrollton. Federal.
4. Jacob Bowman Farm (c. 1860). 347 125th Road. Carrollton. Greek Revival/Italianate.
5. John Thomas Farm (c. 1860). 275 150th Road. Carrollton. Italianate.
6. Margaret Black Farm (1823/1850s). 85 200th Road. Carrollton. Federal.
7. Elon Eldred Farm (c. 1850). 198 State Route 108. Carrollton. Greek Revival.
8. Walnut Hall / Luman Curtius Farm (1868–1870). 216 State Route 108. Carrollton. Italianate.
9. Greene County Infirmary (1870/1907). 375 325th Road. Linder. Italianate. Burned in 2022.
10. Martin Thorpe Farm (c. 1855). 1309 50th Road. Rockbridge. Greek Revival.
11. Azariah Sweetin House Ruins (1848). 700th Road and Hillview–Eldred Road. Walkerville.
12. Benjamin Roodhouse Farm (c. 1850). 748 125th Road. White Hall. Greek Revival.
13. Hazard Clendenen House Ruins (c. 1835). 750 675th Road. Woodville.

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