Dunn is a town in Dane County, Wisconsin, United States.

At the 2000 census there were 5,270 people, 2,079 households, and 1,563 families living in the town.

There were 2,259 housing units at an average density of 78.9 per square mile (30.4/km2).

[2] Of the 2,079 households 31.4% had children under the age of 18 living with them, 65.6% were married couples living together, 5.6% had a female householder with no husband present, and 24.8% were non-families.

None of the families and 1.7% of the population were living below the poverty line, including no under eighteens and none of those over 64.