This list of Ramsar sites in the United States are those wetlands that are considered to be of international importance, protected under the Ramsar Convention treaty. The United States as of 2020, has 41 sites designated as "Wetlands of International Importance" with a surface area of . For a full list of all Ramsar sites worldwide, see List of Ramsar wetlands of international importance.
List of Ramsar sites Name Location Area Designated Description Image Ash Meadows National Wildlife Refuge Nevada 18 December 1986 Bolinas Lagoon California 1 September 1998 A tidal estuary located on the Pacific Flyway, the lagoon provides habitat for migratory birds as well as ducks, geese, and shorebirds. Cache-Lower White Rivers Arkansas 21 November 1989 Cache River-Cypress Creek Wetlands Illinois 1 November 1994 Caddo Lake Texas, Louisiana 23 October 1993 Catahoula Lake Louisiana 18 June 1991 Chesapeake Bay Estuarine Complex Maryland, Virginia 4 June 1987 Cheyenne Bottoms Kansas 19 October 1988 Chiwaukee Illinois Beach Lake Plain IllinoisWisconsin 6 October 2015Bi-state, lake-coast lands, including Chiwaukee Prairie and Illinois Beach State Park Congaree National Park South Carolina 2 February 2012 Connecticut River Estuary and Tidal Wetlands Complex Connecticut 14 October 1994 Corkscrew Swamp Sanctuary Florida 23 March 2009 Delaware Bay Estuary Delaware, New Jersey 20 May 1992 Door Peninsula Coastal Wetlands Wisconsin 6 October 2014 Edwin B. Forsythe National Wildlife Refuge New Jersey 18 December 1986 Elkhorn Slough California 25 June 2018 Everglades National Park Florida 4 June 1987 Francis Beidler Forest South Carolina 30 May 2008 Grassland Ecological Area California 2 February 2005 Horicon Marsh Wisconsin 4 December 1990 Humbug Marsh Michigan 20 January 2010 Izembek Lagoon National Wildlife Refuge Alaska 18 December 1986 Kakagon and Bad River Sloughs Wisconsin 2 February 2012 Kawainui and Hamakua Marsh Complex Hawaii 2 February 2005 Laguna de Santa Rosa Wetland Complex California 16 April 2010 Lower Wisconsin Riverway Wisconsin 14 February 2020 Niagara River Corridor New York 3 October 2019 Okefenokee National Wildlife Refuge Georgia, Florida 18 December 1986 Palmyra Atoll National Wildlife Refuge Line Islands 1 April 2011 Pelican Island National Wildlife Refuge Florida 14 March 1993 Quivira National Wildlife Refuge Kansas 12 February 2002 The refuge has 34 wetlands and includes two shallow lakes, Big Salt Marsh and Little Salt Marsh. More than half of the refuge is Tallgrass and Shortgrass prairies. Roswell Artesian Wetlands New Mexico 7 September 2010 San Francisco Bay and Estuary California 2 February 2013 Sand Lake National Wildlife Refuge South Dakota 3 August 1998 Sue and Wes Dixon Waterfowl Refuge at Hennepin and Hopper Lake Illinois 2 February 2012 The Emiquon Complex Illinois 2 February 2012 Tijuana River National Estuarine Research Reserve California 2 February 2005 Tomales Bay California 30 September 2002 Upper Mississippi River Floodplain Wetlands Minnesota, Wisconsin, Iowa, Illinois 5 January 2010 Wilma H. Schiermeier Olentangy River Wetland Research Park Ohio 18 April 2008
See also Ramsar Convention List of Ramsar sites worldwide
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