Okoboji Township is one of twelve townships in Dickinson County, Iowa, United States.

As of the 2000 census, its population was 2,087.

[1] Okoboji Township was formed in 1859.

[2] According to the United States Census Bureau, Okoboji Township covers an area of 36.12 square miles (93.54 square kilometers); of this, 36.09 square miles (93.48 square kilometers, 99.94 percent) is land and 0.03 square miles (0.07 square kilometers, 0.07 percent) is water.

The township contains these two cemeteries: Little Sioux Lutheran and Saint Joseph.