DeKalb County, Indiana

Founding: 1837 (declared in 1835)
Parent county: Unorganized territory

Namesake: Johann de Kalb, Continental Army general
Seat: Auburn (1837–)

Land area: 363 square miles

Population (2020): 43,265

Population (historic): 1,968 (1840); 13,880 (1860); 20,225 (1880); 25,711 (1900); 24,911 (1930)

Periods of population growth: pre-1840–1900; 1910s; 1940–2020

Subdivisions: Three cities; six towns; 15 townships

Pre-1940 residences (estimated): 5,499 (30.9%)
Pre-1940 housing survival rate: 73.3%
Pre-1860 housing survival rate (1940): 9.9%

Farm housing in disrepair (1950): 9%

Nonfarm housing in disrepair (1950): 7.5%

Average farmhouse value (1930): $1,601
Average outbuilding value (1930): $1,485

Average farmhouse size (1940): 7.3 rooms
Number of farms (1920): 2,461
Average farm size (1920): 73.7 acres
Sources of settlement: Ohio, Pennsylvania, Germany, and New York

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Auburn

Namesake: Unknown

Founding: 1836 (platting); 1839 (post office); 1849 (incorporation)

Population (2020): 13,412

Population (historic): 260 (1850); 677 (1870); 3,396 (1900); 5,088 (1930)

Periods of population growth: pre-1850–2020
Pre-1940 residences (estimated): 1,437 (23.6%)

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