[2] Le Mars is located in northwest Iowa, which is the last part of the state to be settled.

In June 1870, the town was platted, and two years later it won an election to move the county seat from Melbourne.

It grew to become a regional economic center from the late 19th century through the post-World War II period.

The vast majority of the buildings serve a commercial function, with their second-story housing meeting halls, professional offices, or residential units.

This article about a property in Plymouth County, Iowa on the National Register of Historic Places is a stub.