Jefferson County, Indiana

 

Founding: 1811
Parent counties: Clark and Dearborn

Namesake: Thomas Jefferson, U.S. president
Seat: Madison (1811–)

Land area: 361 square miles

Population (2020): 33,147

Population (historic): 8,038 (1820); 23,916 (1850); 29,741 (1870); 22,913 (1900); 19,182 (1930)

Periods of population growth: pre-1820–1870; 1910s; 1930–1980; 1990–2020

Subdivisions: One city; three towns; three CDPs; 10 townships

Pre-1940 residences (estimated): 3,109 (21.6%)
Pre-1940 housing survival rate: 51.8%
Pre-1860 housing survival rate (1940): 21.4%

Farm housing in disrepair (1950): 13.3%

Nonfarm housing in disrepair (1950): 8.6%

Average farmhouse value (1930): $853
Average outbuilding value (1930): $667

Average farmhouse size (1940): 5.3 rooms
Number of farms (1920): 2,518
Average farm size (1920): 55.8 acres
Sources of settlement: Kentucky, Germany, Ohio, and Ireland

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Madison

Namesake: James Madison, U.S. president

Founding: 1810 (platting); 1812 (post office); 1824 (incorporation)

Population (2020): 12,357

Population (historic): 3,798 (1840); 8,130 (1860); 8,945 (1880); 7,835 (1900); 6,530 (1930)

Periods of population growth: pre-1840–1870; 1930–1970; 2010s
Pre-1940 residences (estimated): 1,845 (32%)

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