Chickasaw County is located in northeastern Iowa in the second tier of counties south of the Minnesota state line and in the third tier west of the Mississippi River. It lies entirely.in the Iowan drift soil area; hence the soils are all of glacial origin.
Stevenson, W. H. and Brown, P. E., "Soil Survey of Iowa, Report No. 63—Chickasaw County Soils" (1930). Soil Survey Reports. 57.