Here is the 2017 list of top 10 beaches in the U.S., compiled by Florida International University professor Stephen Leatherman, also known as Dr. Beach.1. Siesta Beach, Siesta Key, Florida2. Kapalua Bay Beach, Maui, Hawaii3. Ocracoke Beach, Outer Banks, North Carolina4. Grayton Beach State Park, Florida Panhandle5. Coopers Beach, Southampton, New York6. Coast Guard Beach, Cape Cod, Massachusetts7. Caladesi Island State Park, Dunedin/Clearwater, Florida8. Hapuna Beach State Park, Big Island, Hawaii9. Coronado Beach, San Diego, California10. Beachwalker Park, Kiawah Island, South Carolina.