Mills County, Iowa

Founding: 1851
Parent county: Pottawattamie

Namesake: Frederick Mills, Iowa soldier
Seat: Glenwood (1851–)

Land area: 437 square miles

Population (2020): 14,484

Population (historic): 4,481 (1860); 14,137 (1880); 16,764 (1900); 15,866 (1930)

Periods of population growth: pre-1860–1900; 1920s; 1970s; 1990–2010

Subdivisions: Seven cities; one CDP; 13 townships

Pre-1940 residences (estimated): 1,778 (29%)
Pre-1940 housing survival rate: 47.8%
Pre-1860 housing survival rate (1940): 4.3%

Farm housing in disrepair (1950): 3.4%

Nonfarm housing in disrepair (1950): 5.4%

Average farmhouse value (1930): $2,205
Average outbuilding value (1930): $1,983
Average farmhouse size (1940): 6.1 rooms
Number of farms (1920): 1,571
Average farm size (1920): 140.2 acres
Sources of settlement: Iowa, Ohio, Illinois, Indiana, Missouri, Pennsylvania, New York, and Germany
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Glenwood

Namesake: Uncertain—likely a descriptive name

Founding: 1848 (platting as Coonville); 1853 (post office); 1857 (incorporation)

Population (2020): 5,073

Population (historic): 614 (1860); 1,793 (1880); 3,040 (1900); 4,269 (1930)

Periods of population growth: 1848–1910; 1920–1960; 1970s; 1990s
Pre-1940 residences (estimated): 436 (20.3%)
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