Miami Beach is a coastal resort city in Miami-Dade County, Florida, United States. It was incorporated on March 26, 1915. The municipality is located on natural and man-made barrier islands between the Atlantic Ocean and Biscayne Bay, the latter of which separates the Beach from Miami. The neighborhood of South Beach, comprising the southernmost 2.5 square miles (6.5 km) of Miami Beach, along with downtown Miami and the Port of Miami, collectively form the commercial center of South Florida. As of the 2010 census, Miami Beach had a total population of 87,779. It has been one of America's pre-eminent beach resorts since the early 20th century.

Can we conclude that are miami and miami beach the same city?
no