Vermilion County, Illinois

Founding: 1826
Parent county: Clark

Namesake: The Vermilion River
Seat: Danville (1827–)

Land area: 898 square miles

Population (2020): 74,188

Population (historic): 5,836 (1830); 11,492 (1850); 30,388 (1870); 65,635 (1900); 89,339 (1930)

Periods of population growth: pre-1830–1930; 1940–1970

Subdivisions: Three cities; 18 villages; one CDP; 19 townships

National Register listings: 15

Pre-1940 residences (estimated): 12,742 (35.3%)
Pre-1940 housing survival rate: 45.1%
Pre-1860 housing survival rate (1940): 6.7%

Farm housing in disrepair (1950): 8.5%

Nonfarm housing in disrepair (1950): 8.6%

Average farmhouse value (1930): $1,963
Average outbuilding value (1930): $1,562

Average farmhouse size (1940): 6.1 rooms
Number of farms (1920): 3,587
Average farm size (1920): 133.6 acres
Sources of settlement: Indiana, Ohio, Kentucky, Germany, and Pennsylvania
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Danville

Namesake: Uncertain

Founding: 1827 (platting); 1827 (post office); 1839 (incorporation)

Population (2020): 29,204

Population (historic): 503 (1840); 1,632 (1860); 7,733 (1880); 16,354 (1900); 36,765 (1930)

Periods of population growth: pre-1840–1970; 1990s
Pre-1940 residences (estimated): 6,429 (43.9%)
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Outstanding Buildings

1. *Fairview / Harvey Sconce Estate (1908). 7131 East 370 North. Carroll. Classical Revival.
2. Thomas Rice Farm (1879). 9949 East 370 North. Carroll. Italianate.
3. *Josiah Sandusky Farm (c. 1870). 12033 East 580N. Carroll. Italianate.
4. *Abraham Sandusky Farm (c. 1870). Catlin–Indianola Road, south of 650 North. Carroll. Italianate. Razed.
5. *Vermilion Grove Friends Meeting House (1884). 3760 North 1500 East. Elwood. Romanesque.
6. *John Cole Farm (c. 1875). 13877 Indianola–Ridge Farm Road. Elwood. Italianate.
7. *Joseph Cunningham House (c. 1870). North Dixie Highway, south of East 4200 North. Grant. Italianate. Razed.
8. Corydon Campbell Farm (c. 1860). 19023 Poland Road. Newell. Greek Revival/Italianate.
9. *Philip Cadle House (1891). 17492 Attica Road. Ross. Queen Anne.
10. *Mann's Chapel (1857). Mann's Chapel Road, west of State Route 1. Ross. Greek Revival.