Rosarito is a coastal resort city in the Mexican state of Baja California located approximately 10 miles south of the U.S. border in Rosarito Beach Municipality. Often mistakenly called "Rosarito Beach" because of the well-known Rosarito Beach Hotel, the town of Rosarito is one part of the municipality named Playas de Rosarito ("Beaches of Rosarito").
Its beaches and dance clubs are a popular destination for young people from the United States during the Memorial Day and Labor Day weekends. Rosarito Beach is the seat of the municipality of Rosarito Beach. The city is the second largest in the Tijuana metropolitan area and southern beach city of the San Diego–Tijuana international metropolitan region.
It is the westernmost municipal seat in Mexico, slightly farther west than neighboring Tijuana, which lies inland to its north-northeast. As of 2010, the city had a population of 65,278.