National Register of Historic Places listings in Cassia County, Idaho

This is a list of the National Register of Historic Places listings in Cassia County, Idaho.

This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Cassia County, Idaho, United States. Latitude and longitude coordinates are provided for many National Register properties and districts; these locations may be seen together in a map.

There are 7 properties and districts listed on the National Register in the county, including 1 National Historic Landmark. More may be added; properties and districts nationwide are added to the Register weekly.