Jasper County, Missouri

Founding: 1841
Parent county: Unorganized territory

Namesake: William Jasper, South Carolina soldier
Seat: Carthage (1842–)

Land area: 638 square miles

Population (2020): 122,761

Population (historic): 4,223 (1850); 14,928 (1870); 50,500 (1890); 89,673 (1910); 73,810 (1930)

Periods of population growth: pre-1850–1910; 1930–1950; 1960–2020

Subdivisions: 16 cities; six villages; 15 townships

National Register listings: 42

Pre-1940 residences (estimated): 8,327 (16.2%)
Pre-1940 housing survival rate: 41.1%
Pre-1860 housing survival rate (1940): 5.2%

Farm housing in disrepair (1950): 16.2%

Nonfarm housing in disrepair (1950): 11.5%
Average farmhouse value (1930): $1,155
Average outbuilding value (1930): $758
Average farmhouse size (1940): 5.2 rooms
Number of farms (1920): 2,786
Average farm size (1920): 93.5 acres
Sources of settlement: Illinois, Ohio, Indiana, Kentucky, and Tennessee
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Carthage

Namesake: The ancient city of Carthage

Founding: 1842 (platting); 1843 (post office)

Population (2020): 15,522

Population (historic): 4,167 (1880); 9,416 (1900); 9,736 (1930)

Periods of population growth: pre-1880–1920; 1930–1960; 1970s; 1990–2020
Pre-1940 residences (estimated): 1,478 (26.3%)
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Outstanding Buildings

1. *William Phelps Estate (c. 1904). 10116 Newcastle Lane. Madison. Classical Revival/Romanesque.
2. John Carter Estate (c. 1905). 1201 East Chestnut Street. Marion. Queen Anne.
3. Joshua Kendrick House (c. 1850). 131 East Java Street. Marion.