Berlin is a town in Green Lake County, Wisconsin, United States.

As of the census[2] of 2000, there were 5,524 people, 423 households, and 343 families residing in the town.

There were 434 housing units at an average density of 14.6 per square mile (5.7/km2).

There were 423 households, out of which 36.6% had children under the age of 18 living with them, 71.6% were married couples living together, 5.4% had a female householder with no husband present, and 18.9% were non-families.

16.3% of all households were made up of individuals, and 8.3% had someone living alone who was 65 years of age or older.