Jennings County, Indiana

 

Founding: 1817
Parent counties: Jackson and Jefferson

Namesake: Jonathan Jennings, Indiana governor
Seat: Vernon (1817–)

Land area: 377 square miles

Population (2020): 27,613

Population (historic): 2,000 (1820); 12,096 (1850); 16,218 (1870); 15,757 (1900); 11,800 (1930)

Periods of population growth: pre-1820–1880; 1890s; 1930–2010

Subdivisions: One city; one town; four CDPs; 11 townships

Pre-1940 residences (estimated): 1,441 (11.8%)
Pre-1940 housing survival rate: 45.5%
Pre-1860 housing survival rate (1940): 8.9%

Farm housing in disrepair (1950): 16.4%

Nonfarm housing in disrepair (1950): 9.3%

Average farmhouse value (1930): $715
Average outbuilding value (1930): $576

Average farmhouse size (1940): 5.2 rooms
Number of farms (1920): 2,023
Average farm size (1920): 78.8 acres
Sources of settlement: Ohio, Kentucky, Germany, and Ireland

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Vernon

Namesake: Mount Vernon, George Washington's estate

Founding: 1815 (platting); 1817 (post office); 1817 (incorporation)

Population (2020): 236

Population (historic): 690 (1850); 673 (1870); 557 (1900); 410 (1930)

Periods of population growth: pre-1850; 1860s; 1930–1950; 1980s
Pre-1940 residences (estimated): 146 (62.4%)

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