Jefferson Township
Township
Location in Clayton County
Coordinates: 42°46′57″N 091°08′00″W / 42.78250°N 91.13333°W / 42.78250; -91.13333
Country	United States
State	Iowa
County	Clayton
Area
• Total	57.47 sq mi (148.83 km2)
• Land	50.96 sq mi (131.97 km2)
• Water	6.51 sq mi (16.86 km2)  11.33%
Elevation	899 ft (274 m)
Population  (2000)
• Total	2,721
• Density	53.4/sq mi (20.6/km2)
GNIS feature ID	0468132

Jefferson Township is a township in Clayton County, Iowa, United States. As of the 2000 census, its population was 2,721.

Jefferson Township covers an area of 57.47 square miles (148.8 km²) and contains one incorporated settlement, Guttenberg. According to the USGS, it contains nine cemeteries: Borcherding, Guttenberg, Lewis, Mount Olivet, Saint Johns, Saint Marys, Saint Michael, Saint Pauls and Stock School.

Frenchtown Lake is within this township. The streams of Buck Creek, Carlan Creek, Miners Creek, Price Branch and South Cedar Creek run through this township.

Jefferson Township contains three airports or landing strips: Abels Island Airport, GAA Private Airport and Walters Heliport.

• USGS Geographic Names Information System (GNIS)

• US-Counties.com
• City-Data.com