National Register of Historic Places listings in St. Louis County, Minnesota

This is a list of the National Register of Historic Places listings in Saint Louis County, Minnesota. It is intended to be a complete list of the properties and districts on the National Register of Historic Places in Saint Louis County, Minnesota, United States. The locations of National Register properties and districts for which the latitude and longitude coordinates are included below, may be seen in an online map.

There are 131 properties and districts listed on the National Register in the county, including three National Historic Landmarks. A supplementary list includes three additional sites that were formerly on the National Register.

Many of Saint Louis County's listings are associated with the city of Duluth's role as the westernmost port on the Great Lakes, shared with Superior, Wisconsin. The iron ore of the Mesabi Range and the Vermilion Range led to the development of the cities of Chisholm, Hibbing, Virginia, and Ely. Three of the iron mines are National Historic Landmarks: Hull–Rust–Mahoning Open Pit Iron Mine, Mountain Iron Mine, and the underground Soudan Iron Mine.

Current listings

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Former listings

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