St. Joseph is a town in St. Croix County, Wisconsin, United States.

There were 1,511 housing units at an average density of 50.9 per square mile (19.7/km2).

13.5% of all households were made up of individuals, and 4.2% had someone living alone who was 65 years of age or older.

There were 1,259 housing units at an average density of 39.2 per square mile (15.1/km2).

13.4% of all households were made up of individuals, and 2.6% had someone living alone who was 65 years of age or older.

About 0.3% of families and 1.4% of the population were below the poverty line, including none of those under the age of eighteen or sixty-five or over.