Sunny Isles Beach is a city in Miami-Dade County, Florida , United States . The population was 15,315 at the 2000 census. As of 2004, the population recorded by the U.S. Census Bureau is 15,399 .

Sunny Isles Beach is a major center of South Florida's Russian community, with a plethora of Russian stores lining Collins Avenue, the main thoroughfare through the city. The city is sometimes referred to as Little Moscow because of its many Russian and Russian-descended Russian American ) residents. It is a booming resort area and developers such as Donald Trump have invested heavily in construction of high-rise hotels and condominiums.