An affluent district in the West Los Angeles region of Los Angeles, California, United States. Located at the base of the Santa Monica Mountains, bounded by the San Diego Freeway on the east, Wilshire Boulevard on the south, the Santa Monica city limits on the southwest, the border of Topanga State Park on the west and Mulholland Drive along the ridgeline of the mountains on the north. Nearby neighborhoods and cities include Pacific Palisades on the west, Santa Monica on the southwest, West Los Angeles on the south, Sawtelle on the southeast, Westwood on the east, Bel-Air on the northeast and Encino on the north. The area’s ZIP code is 90049, which includes Brentwood and part of Bel-Air Estates (the other section of Bel-Air Estates is located in the 90077 zip code).