Onstad Township is a township in Polk County, Minnesota, United States. It is part of the Grand Forks-ND-MN Metropolitan Statistical Area. The population was 70 at the 2000 census.

Onstad Township was organized in 1882, and named for Ole P. Onstad, a Norwegian settler.

Geography

According to the United States Census Bureau, the township has a total area of 35.7 square miles (92.4 km), of which 35.6 square miles (92.1 km) is land and 0.1 square mile (0.3 km) (0.31%) is water.

Demographics

As of the census