Dearborn County, Indiana

Founding: 1803
Parent county: Clark

Namesake: Henry Dearborn, U.S. secretary of war
Seat: Lawrenceburg (1803–1836, 1843–); Wilmington (1836–1843)

Land area: 305 square miles

Population (2020): 50,679

Population (historic): 7,310 (1810); 19,327 (1840); 24,116 (1870); 22,194 (1900); 21,056 (1930)

Periods of population growth: pre-1810–1860; 1870s; 1920–2020

Subdivisions: Three cities; four towns; two CDPs; 14 townships

Pre-1940 residences (estimated): 3,710 (18.2%)
Pre-1940 housing survival rate: 49.1%
Pre-1860 housing survival rate (1940): 20.1%

Farm housing in disrepair (1950): 7.7%

Nonfarm housing in disrepair (1950): 6.3%

Average farmhouse value (1930): $1,228
Average outbuilding value (1930): $945

Average farmhouse size (1940): 5.7 rooms
Number of farms (1920): 2,145
Average farm size (1920): 65.1 acres
Sources of settlement: Germany, Ohio, Pennsylvania, Ireland, France, New York, and England

_________________________________________________________________________________

Lawrenceburg

Namesake: Mary Lawrence, wife of the city's founder

Founding: 1802 (platting); 1815 (incorporation); 1816 (post office)

Population (2020): 5,129

Population (historic): 2,651 (1850); 3,159 (1870); 4,326 (1900); 4,072 (1930)

Periods of population growth: pre-1850–1880; 1890s; 1920–1960; 1990–2020
Pre-1940 residences (estimated): 693 (28.5%)

_________________________________________________________________________________

View and filter the data. Or see a map.

_________________________________________________________________________________