McLean County, Illinois

Founding: 1830
Parent county: Tazewell

Namesake: John McLean, Illinois politician
Seat: Bloomington (1831–)

Land area: 1,183 square miles

Population (2020): 170,954

Population (historic): 6,565 (1840); 28,772 (1860); 60,100 (1880); 67,843 (1900); 73,117 (1930)

Periods of population growth: pre-1840–2020

Subdivisions: Five cities; one town; 16 villages; one CDP; 30 townships

National Register listings: 37

Pre-1940 residences (estimated): 9,920 (13.6%)
Pre-1940 housing survival rate: 53.9%
Pre-1860 housing survival rate (1940): 20.9%

Farm housing in disrepair (1950): 5%

Nonfarm housing in disrepair (1950): 6.6%

Average farmhouse value (1930): $2,368
Average outbuilding value (1930): $2,685

Average farmhouse size (1940): 6.7 rooms
Number of farms (1920): 4,309
Average farm size (1920): 158.7 acres
Sources of settlement: Ohio, Germany, Ireland, Kentucky, Pennsylvania, New York, Indiana, Virginia, and England
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Bloomington

Namesake: A traditional name

Founding: 1831 (platting); 1831 (post office); 1839 (incorporation)

Population (2020): 78,680

Population (historic): 1,594 (1850); 14,590 (1870); 20,484 (1890); 25,768 (1910); 30,930 (1930)

Periods of population growth: pre-1850–2020
Pre-1940 residences (estimated): 4,807 (13.9%)
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Outstanding Buildings

1. *Elihue Bozarth Farm (1883). 2997 East 1000 North. Allin. Italianate.
2. *Walker School (1903). 10096 Walker School Road. Bloomington. Classical Revival.
3. Isham Lain Farm (c. 1870). 11845 East 850 North. Dale. Italianate.
4. Henry McClure House (c. 1865). 17231 North 400 East. Danvers. Italianate.
5. *James Dunning House (c. 1855). 12255 North 2850 East. Dawson. Greek Revival.
6. Robert Dickerson House (1869). 413 East Vine Street. Empire. Italianate.
7. *Prairie Home / Lafayette Funk Farm (1864). 10875 Prairie Home Lane. Funk's Grove. Italianate/Classical Revival.
8. *Jacob Hamm House (1871). 14753 East 2100 North. Hudson. Italianate.
9. Harriet Adams Farm (c. 1880). 2467 North 400 East. Mount Hope. Italianate.
10. Joseph Noble Farm (c. 1855). 14219 East 300 North. Randolph. Greek Revival/Italianate.
11. Albert Welch Farm (c. 1865). 16838 East 775 North. Randolph. Italianate.
12. *William Thompson House (c. 1892). North 1550 East, south of East 700 North. Randolph. Razed.
13. *Duncan Manor / William Duncan House (c. 1866). 1002 Towanda–Barnes Road. Towanda. Italianate.
14. *Paul Murray Farm (c. 1903). 5736 North 3200 East. West. Classical Revival. Razed.