Delavan is a town in Walworth County, Wisconsin, United States.

As of the census[2] of 2000, there were 4,559 people, 1,798 households, and 1,235 families residing in the town.

There were 3,054 housing units at an average density of 120.7 per square mile (46.6/km2).

24.5% of all households were made up of individuals, and 8.7% had someone living alone who was 65 years of age or older.

Delavan is home to custom car and hot rod parts supplier Maximum Torque Specialties (MTS).