Crawford County, Iowa

Founding: 1855 (declared in 1851)
Parent counties: Pottawattamie and unorganized territory
Namesake: William Crawford, Georgia politician
Seat: Denison (1856–)
Land area: 714 square miles
Population (2020): 16,525
Population (historic): 383 (1860); 12,413 (1880); 21,685 (1900); 21,028 (1930)
Periods of population growth: 1860–1900; 1910–1930; 1960s; 1990–2010
Subdivisions: 13 cities; 20 townships
National Register listings: 15
Pre-1940 residences (estimated): 2,434 (34.5%)
Pre-1940 housing survival rate: 52.4%

Farm housing in disrepair (1950): 5.3%

Nonfarm housing in disrepair (1950): 6.6%

Average farmhouse value (1930): $2,467
Average outbuilding value (1930): $3,489
Average farmhouse size (1940): 6.8 rooms
Number of farms (1920): 2,444
Average farm size (1920): 166.5 acres
Sources of settlement: Iowa, Germany, Illinois, Ireland, and Sweden
_________________________________________________________________________________
 

Denison

 
Namesake: Jesse Denison, owner of the city site
Founding: 1856 (platting); 1856 (post office); 1875 (incorporation)
Population (2020): 8,373
Population (historic): 326 (1870); 1,782 (1890); 3,133 (1910); 3,905 (1930)
Periods of population growth: 1856–1980; 1990–2020
Pre-1940 residences (estimated): 547 (18.7%)
_________________________________________________________________________________

View and filter the data. Or see a larger map.
_________________________________________________________________________________

Outstanding Buildings

1. *Simeon Dow House (1874). 513 South Prince Street. Union. Italianate.