Norwalk is a village in Monroe County, Wisconsin, United States.

[5][6] It is located on what was once the main line of the Chicago and North Western, which in the 1960s was converted into the Elroy-Sparta Bike Trail.

[7] According to the United States Census Bureau, the village has a total area of 1.03 square miles (2.67 km2), all of it land.

There were 237 housing units at an average density of 225.7 per square mile (87.1/km2).

25.6% of all households were made up of individuals, and 14% had someone living alone who was 65 years of age or older.

27.9% of all households were made up of individuals, and 17.4% had someone living alone who was 65 years of age or older.