National Register of Historic Places listings in Pitkin County, Colorado
The list of entries in the National Register of Historic Places in Pitkin County names all houses and historic districts in Pitkin County of the U.S. state of Colorado that have been listed on the National Register of Historic Places ( NRHP). February 28, 2011 included the list 36 entries, including five historic districts and 31 independent registered estate, most of which are located in the City of Aspen.