St. Charles County, Missouri

 

Founding: 1812
Parent county: Unorganized territory

Namesake: The city of St. Charles
Seat: St. Charles (1812–)

Land area: 560 square miles

Population (2020): 405,262

Population (historic): 3,505 (1810); 7,911 (1840); 21,304 (1870); 24,474 (1900); 24,354 (1930)

Periods of population growth: pre-1810–1880; 1890–1910; 1920–2020

Subdivisions: 15 cities; two villages; one CDP

Pre-1940 residences (estimated): 3,283 (2.1%)
Pre-1940 housing survival rate: 46.2%
Pre-1860 housing survival rate (1940): 15.1%

Farm housing in disrepair (1950): 14%

Nonfarm housing in disrepair (1950): 7%

Average farmhouse value (1930): $1,835
Average outbuilding value (1930): $1,297
Average farmhouse size (1940): 5.1 rooms
Number of farms (1920): 2,165
Average farm size (1920): 106.2 acres
Sources of settlement: Germany, Illinois, Virginia, and Kentucky
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St. Charles

Namesake: St. Charles Borromeo, Italian archbishop

Founding: circa 1769 (founding); 1806 (post office); 1809 (incorporation)

Population (2020): 70,493

Population (historic): 1,498 (1850); 5,570 (1870); 6,161 (1890); 9,437 (1910); 10,491 (1930)

Periods of population growth: pre-1850–1870; 1880–1910; 1920–2020
Pre-1940 residences (estimated): 1,607 (5.1%)
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