St. Mary's Catholic Church is a red brick, Italianate Romanesque Revival building designed by Tourtellotte and Hummel and constructed by H.J.

The church features an 80-ft tower, and the building was added to the National Register of Historic Places in 1982.

[4] The church was designed to seat a congregation of 300 persons,[5] and it remained in service as a Catholic building until 2003, when larger Our Lady of the Valley Catholic Church opened in Caldwell.

[6][7] Media related to St. Mary's Catholic Church (Caldwell, Idaho) at Wikimedia Commons

This article about a property in Idaho on the National Register of Historic Places is a stub.