St. Croix Falls is a city in Polk County, Wisconsin, United States.

After the increase of logging and the founding of the Cushing Land Company, St. Croix Falls became incorporated in 1887.

The logging industry became important in St. Croix Falls, attracting New England immigrants which started a chain reaction of cutting down vast amounts of white pine.

As of the 2010 census,[11] there were 2,133 people, 967 households, and 522 families residing in the city.

40.2% of all households were made up of individuals, and 18.8% had someone living alone who was 65 years of age or older.

As of the census[12] of 2000, there were 2,033 people, 872 households, and 504 families living in the city.

36.8% of all households were made up of individuals, and 19.0% had someone living alone who was 65 years of age or older.

Wannigan Days is a four-day festival, held in St. Croix Falls and Taylors Falls, Minnesota, meant as a celebration of the logging history of the St. Croix region.

It is home to the Park Headquarters for the St. Croix National Scenic Riverway, and it lies adjacent to the Interstate Park, a state park of Minnesota and Wisconsin that spans the state line along the Dalles of the St. Croix River.

The Cushing Land Agency Building, Lamar Community Center and Thomas Henry Thompson House are located in St. Croix Falls.