Winneshiek County, Iowa

Founding: 1851 (declared in 1847)
Parent county: Unorganized territory

Namesake: Winneshiek, Winnebago chief
Seat: Decorah (1851–)

Land area: 690 square miles

Population (2020): 20,070

Population (historic): 546 (1850); 23,570 (1870); 22,528 (1890); 21,729 (1910); 21,630 (1930)

Periods of population growth: pre-1850–1880; 1890s; 1910s; 1930s; 1950–1980; 1990s

Subdivisions: Eight cities; one CDP; 20 townships

Pre-1940 residences (estimated): 3,298 (36.7%)
Pre-1940 housing survival rate: 63%
Pre-1860 housing survival rate (1940): 3.6%

Farm housing in disrepair (1950): 7.5%

Nonfarm housing in disrepair (1950): 4.8%

Average farmhouse value (1930): $2,460
Average outbuilding value (1930): $3,063
Average farmhouse size (1940): 7 rooms
Number of farms (1920): 2,915
Average farm size (1920): 112.9 acres
Sources of settlement: Norway, New York, Germany, Switzerland, Czechoslovakia, Wisconsin, and Ireland
_________________________________________________________________________________

Decorah

Namesake: Waukon Decorah, Winnebago leader

Founding: 1851 (platting); 1851 (post office); 1857 (incorporation)

Population (2020): 7,587

Population (historic): 1,920 (1860); 2,951 (1880); 3,246 (1900); 4,581 (1930)

Periods of population growth: 1851–1880; 1890–1980; 1990s
Pre-1940 residences (estimated): 978 (34.1%)
_________________________________________________________________________________

View and filter the data. Or see a map.

_________________________________________________________________________________