[4] According to the United States Census Bureau, the township has a total area of 36.3 square miles (94.0 km2), all land.

There is a weather station for Thorhult, a community in the Steenerson Township.

[5] Thorhult has a dry-winter humid continental climate (Köppen Dwb).

As of the census[1] of 2000, there were 28 people, 11 households, and 8 families residing in the township.

18.2% of all households were made up of individuals, and 9.1% had someone living alone who was 65 years of age or older.