This is a list of the National Register of Historic Places listings in Mahaska County, Iowa. This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Mahaska County, Iowa, 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 48 properties and districts listed on the National Register in the county. Current listings |} Former listings One property was formerly listed but has been removed: |} See also List of National Historic Landmarks in Iowa National Register of Historic Places listings in Iowa Listings in neighboring counties: Jasper, Keokuk, Marion, Monroe, Poweshiek, Wapello References Mahaska Buildings and structures in Mahaska County, Iowa