Northfield is a town in Jackson County, Wisconsin, United States.

The unincorporated communities of Northfield and York are located in the town.

Interstate 94 bisects the town, roughly running from the northwest corner of the town to the southeast corner, with an exit located at Wisconsin Highway 121 near the community of Northfield.

There were 261 housing units at an average density of 7.3 per square mile (2.8/km2).

17.0% of all households were made up of individuals, and 8.5% had someone living alone who was 65 years of age or older.