List of World Heritage Sites in the United States

The United Nations Educational, Scientific and Cultural Organization (UNESCO) World Heritage Sites are places of importance to cultural or natural heritage as described in the UNESCO World Heritage Convention, established in 1972. The United States of America ratified the convention on December 7, 1973, making its historical sites eligible for inclusion on the list.
The first sites in the United States added to the list were Mesa Verde National Park and Yellowstone National Park, both at the Second Session of the World Heritage Committee, held in Washington, D.C., September 5–8, 1978. In total, 24 sites have been included, the most recent being a selection of eight structures exemplifying The 20th-century Architecture of Frank Lloyd Wright in 2019. The twenty-four sites are located in twenty different states and two territories. Arizona, California, Hawaii, Illinois, Montana, New Mexico, New York, and Pennsylvania, each contain multiple sites (with the Frank Lloyd Wright site spread across six states), while two sites (Waterton-Glacier International Peace Park (Montana) and Kluane / Wrangell – St. Elias / Glacier Bay / Tatshenshini-Alsek) (Alaska) are transboundary sites shared with Canada.
World Heritage Sites.
The table lists information about each World Heritage Site:
Sites by state.
Exclusive sites refer to sites located in a single community. Shared sites refers to sites with entries in multiple states or shared with another country.
Tentative list.
The following sites have been added to the United States' tentative list of inclusion on the World Heritage List. The tentative list for sites within the United States was last updated in 2017. In addition to sites within the 50 states, the tentative list includes one site in American Samoa, an unincorporated territory of the United States.