Tazewell County, Illinois

Founding: 1827
Parent county: Unorganized territory

Namesake: Littleton Tazewell, Virginia governor
Seat: Mackinaw (1827–1831); Pekin (1831–)

Land area: 649 square miles

Population (2020): 131,343

Population (historic): 4,716 (1830); 12,052 (1850); 27,903 (1870); 33,221 (1900); 46,082 (1930)

Periods of population growth: pre-1830–1880; 1890–1980; 1990–2010

Subdivisions: Six cities; ten villages; one CDP; 19 townships

National Register listings: 18

Pre-1940 residences (estimated): 9,375 (15.9%)
Pre-1940 housing survival rate: 48%
Pre-1860 housing survival rate (1940): 15.5%

Farm housing in disrepair (1950): 5.8%

Nonfarm housing in disrepair (1950): 8.6%

Average farmhouse value (1930): $2,561
Average outbuilding value (1930): $2,426

Average farmhouse size (1940): 6.9 rooms
Number of farms (1920): 2,536
Average farm size (1920): 131.6 acres
Sources of settlement: Germany, Ohio, Pennsylvania, New York, Ireland, Kentucky, and Virginia
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Pekin

Namesake: Beijing, China

Founding: 1829 (platting); 1832 (post office); 1839 (incorporation)

Population (2020): 31,731

Population (historic): 1,678 (1850); 5,696 (1870); 6,347 (1890); 9,897 (1910); 16,129 (1930)

Periods of population growth: pre-1850–1980; 1990–2010
Pre-1940 residences (estimated): 3,190 (21%)
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Outstanding Buildings

1. Benjamin Prettyman Farm (c. 1850). 2900 Veterans Drive. Cincinnati.
2. *Abraham Chaffer House (c. 1870). 29678 US Highway 150. Deer Creek. Italianate.
3. *William Verry Farm (c. 1870). 33198 Armington Road. Hittle. Italianate.
4. William Burt House (1869/1880s). 367 Horner Road. Hittle. Italianate/Eastlake.
5. John Miller Farm (c. 1880). 3910 Miller Road. Hittle. Italianate.
6. Martin Hornish Farm (c. 1875). 24454 Pleasant View Road. Washington. Italianate.