Saline County, Missouri

Founding: 1821
Parent county: Cooper

Namesake: Salt springs within the county
Seat: Jefferson (1820–1831); Jonesboro (1831–1839); Arrow Rock (1839–1840); Marshall (1840–)

Land area: 756 square miles

Population (2020): 23,333

Population (historic): 2,873 (1830); 8,843 (1850); 21,672 (1870); 33,703 (1900); 30,598 (1930)

Periods of population growth: pre-1830–1890; 1920s; 1970s; 1990s

Subdivisions: Seven cities; three villages; 11 townships

Pre-1940 residences (estimated): 2,288 (22.5%)
Pre-1940 housing survival rate: 30.1%
Pre-1860 housing survival rate (1940): 9.7%

Farm housing in disrepair (1950): 7.5%

Nonfarm housing in disrepair (1950): 9.7%

Average farmhouse value (1930): $1,815
Average outbuilding value (1930): $1,275

Average farmhouse size (1940): 5.1 rooms
Number of farms (1920): 3,024
Average farm size (1920): 121.9 acres
Sources of settlement: Virginia, Kentucky, Ohio, Illinois, and Germany

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Marshall

Namesake: John Marshall, Supreme Court chief justice

Founding: 1839 (platting); 1839 (incorporation); 1840 (post office)

Population (2020): 13,806

Population (historic): 2,701 (1880); 5,086 (1900); 8,103 (1930)

Periods of population growth: pre-1880–1900; 1910–1980; 2000–2020
Pre-1940 residences (estimated): 896 (17.4%)

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