Bureau County, Illinois

Founding: 1837
Parent county: Putnam

Namesake: Big Bureau Creek
Seat: Princeton (1837–)

Land area: 869 square miles

Population (2020): 33,244

Population (historic): 3,067 (1840); 26,426 (1860); 33,172 (1880); 41,112 (1900); 38,845 (1930)

Periods of population growth: pre-1840–1910; 1940s; 1960–1980

Subdivisions: Two cities; 20 villages; 25 townships

Pre-1940 residences (estimated): 5,694 (36.3%)
Pre-1940 housing survival rate: 62.4%
Pre-1860 housing survival rate (1940): 12.2%

Farm housing in disrepair (1950): 3.9%

Nonfarm housing in disrepair (1950): 4.6%

Average farmhouse value (1930): $2,595
Average outbuilding value (1930): $2,983

Average farmhouse size (1940): 7.4 rooms
Number of farms (1920): 3,203
Average farm size (1920): 143.2 acres
Sources of settlement: Pennsylvania, Germany, Ohio, New York, Sweden, Ireland, and England
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Princeton

Namesake: Unclear—possibly Princeton, New Jersey

Founding: 1832 (platting); 1833 (post office); 1849 (incorporation)

Population (2020): 7,832

Population (historic): 2,473 (1860); 3,439 (1880); 4,023 (1900); 4,762 (1930)

Periods of population growth: 1832–1880; 1890–1910; 1920–1980; 1990–2020
Pre-1940 residences (estimated): 1,277 (32.6%)
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