Benton County, Missouri

Founding: 1835
Parent counties: St. Clair and unorganized territory

Namesake: Thomas Benton, Missouri politician
Seat: Warsaw (1837–)

Land area: 704 square miles

Population (2020): 19,394

Population (historic): 4,205 (1840); 9,072 (1860); 12,396 (1880); 16,556 (1900); 11,708 (1930)

Periods of population growth: pre-1840–1900; 1960–2020

Subdivisions: Three cities; nine townships

National Register listings: Four

Pre-1940 residences (estimated): 874 (6.2%)
Pre-1940 housing survival rate: 34%
Pre-1860 housing survival rate (1940): 6.5%

Farm housing in disrepair (1950): 17.9%

Nonfarm housing in disrepair (1950): 12.6%

Average farmhouse value (1930): $1,087
Average outbuilding value (1930): $814
Average farmhouse size (1940): 4.4 rooms
Number of farms (1920): 2,157
Average farm size (1920): 92.3 acres
Sources of settlement: Missouri, Germany, Kentucky, Tennessee, Illinois, and Indiana
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Warsaw

Namesake: Warsaw, Poland

Founding: 1837 (platting); 1839 (post office); 1843 (incorporation)

Population (2020): 2,209

Population (historic): 515 (1880); 743 (1900); 1,102 (1930)

Periods of population growth: pre-1880–1930; 1950–2020
Pre-1940 residences (estimated): 118 (9.2%)
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