Greenfield Township, Calhoun County, Iowa
|Greenfield Township, Calhoun County|
|• Total||36.98 sq mi (95.77 km2)|
|• Land||36.98 sq mi (95.77 km2)|
|• Water||0 sq mi (0 km2)|
|Elevation||1,152 ft (351 m)|
|• Density||7.4/sq mi (2.9/km2)|
|GNIS feature ID||0467973|
Greenfield Township was created in 1870. It was probably named from the green prairie grass.
Greenfield Township covers an area of 36.98 square miles (95.8 km2) and contains one incorporated settlement, Knierim.
- "US Board on Geographic Names". United States Geological Survey. 2007-10-25. Retrieved 2008-01-31.
- "American FactFinder". United States Census Bureau. Archived from the original on 2013-09-11. Retrieved 2008-01-31.
- Stonebraker, Beaumont E. (1915). Past and Present of Calhoun County, Iowa: A Record of Settlement, Organization, Progress, and Achievement, Volume 1. Pioneer Publishing Company. p. 109.
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