Hamilton County, Indiana

Founding: 1823
Parent counties: Unorganized territory

Namesake: Alexander Hamilton, Founding Father
Seat: Noblesville (1824–)

Land area: 394 square miles

Population (2020): 347,467

Population (historic): 1,757 (1830); 17,310 (1860); 24,801 (1880); 29,914 (1900); 23,444 (1930)

Periods of population growth: pre-1830–1900; 1930–2020

Subdivisions: Four cities; four towns; nine townships

Pre-1940 residences (estimated): 5,053 (4.2%)
Pre-1940 housing survival rate: 60.7%
Pre-1860 housing survival rate (1940): 9.8%

Farm housing in disrepair (1950): 5.5%

Nonfarm housing in disrepair (1950): 8%

Average farmhouse value (1930): $1,569
Average outbuilding value (1930): $1,394

Average farmhouse size (1940): 6.4 rooms
Number of farms (1920): 2,868
Average farm size (1920): 73.2 acres
Sources of settlement: Ohio, North Carolina, and Pennsylvania

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Noblesville

Namesake: Uncertain—likely James Noble, Indiana politician

Founding: 1823 (platting); 1824 (post office); 1851 (incorporation)

Population (2020): 69,604

Population (historic): 664 (1850); 1,435 (1870); 4,792 (1900); 4,811 (1930)

Periods of population growth: pre-1850–1910; 1920–1960; 1970–2020
Pre-1940 residences (estimated): 1,416 (6.1%)

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