Osage County, Missouri

Founding: 1841
Parent county: Gasconade

Namesake: The Osage River
Seat: Linn (1843–)

Land area: 604 square miles

Population (2020): 13,274

Population (historic): 6,704 (1850); 10,793 (1870); 13,080 (1890); 14,283 (1910); 12,462 (1930)

Periods of population growth: pre-1850–1910; 1960–2010

Subdivisions: Four cities; two villages; six townships

National Register listings: Nine

Pre-1940 residences (estimated): 922 (14%)
Pre-1940 housing survival rate: 42.8%
Pre-1860 housing survival rate (1940): 8.3%

Farm housing in disrepair (1950): 15%

Nonfarm housing in disrepair (1950): 10%

Average farmhouse value (1930): $908
Average outbuilding value (1930): $788

Average farmhouse size (1940): 4.7 rooms
Number of farms (1920): 1,979
Average farm size (1920): 80.7 acres
Sources of settlement: Germany and Tennessee

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Linn

Namesake: Lewis Linn, Missouri politician

Founding: 1843 (platting); 1844 (post office); 1844 (incorporation)

Population (2020): 1,350

Population (historic): 491 (1900); 532 (1910); 441 (1920); 555 (1930)

Periods of population growth: pre-1900–1910; 1920–1970; 1990–2010
Pre-1940 residences (estimated): 63 (8.3%)

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Outstanding Buildings

1. Frederick Busch Farm (1876). 1608 Road N. Crawford.
2. *Osage County Infirmary (1893). 116 Ely Manor Lane. Crawford.
3. Conrad Fechtel Farm (c. 1880). 40 Cottonwood Trails Lane. Washington.
4. *William Huber Farm (1881). 27 Road 501. Washington. Gothic Revival.
5. *Schmitz House (c. 1850). 1004 US Highway 63. Washington.