[3] Summit Township was named due to its lofty elevation.

The east half of the city of Blackduck is within this township geographically but is a separate entity.

As of the census[1] of 2000, there were 259 people, 98 households, and 77 families residing in the township.

19.4% of all households were made up of individuals, and 9.2% had someone living alone who was 65 years of age or older.

None of the families and 5.3% of the population were living below the poverty line, including no under eighteens and 30.3% of those over 64.