The Gulf Coast has the largest number of wetlands in the U.S., providing critical habitats for wildlife and protecting the coastline.

The Gulf Coast is home to vast wetlands, including salt marshes, freshwater swamps, and mangrove forests. These wetlands are crucial for biodiversity, offering habitats for many bird species, fish, and other wildlife. They also help protect the coastline from erosion and serve as natural water filters. While the Atlantic Coast and Pacific Coast have important wetland areas, the Gulf Coast has the largest expanse of wetlands, particularly in states like Louisiana, which is home to extensive marshes and estuaries. The Great Lakes region also has wetlands but in smaller quantities compared to the Gulf Coast.