Aztalan is a town in Jefferson County, Wisconsin, United States.

[3] The unincorporated communities of Aztalan and Jefferson Junction are located in the town.

[4] Aztalan State Park, the site of an ancient Mississippian settlement with two small, flat-topped platform mounds, is located in the town.

[5] As of the census[2] of 2000, there were 1,447 people, 530 households, and 433 families residing in the town.

14.7% of all households were made up of individuals, and 6.2% had someone living alone who was 65 years of age or older.