Riviera Beach is a city in Palm Beach County, Florida, United States, which was incorporated September 29, 1922. Due to the location of its eastern boundary, it is also the easternmost municipality in the Miami metropolitan area, which was home to an estimated 6,012,331 people in 2015. In the 2010 U.S. Census, the total population of Riviera Beach residents was 32,488 people. Riviera Beach is predominantly an African-American city and it is on the List of U.S. cities with African American majority populations. It is home to the Port of Palm Beach and a United States Coast Guard station, and has its own marina.The median income for a household in the city was $28,715.