Sunny Isles Beach (SIB, officially City of Sunny Isles Beach) is a city located on a barrier island in northeast Miami-Dade County, Florida, United States. The City is bounded by the Atlantic Ocean on the east and the Intracoastal Waterway on the west. As of 2010, the population is 20,832. Sunny Isles Beach is an area of cultural diversity with stores lining Collins Avenue, the main thoroughfare through the city. Sunny Isles Beach was also the 2008 site of MTV’s annual “Spring Break” celebration, with headquarters at the local Newport Beachside Resort.