Beverly Hills P.O. is just a mile north of Sunset Blvd. All the way to Mulholland lies a prestigious hillside community with terrific views and the advantage of having a Beverly Hills zipcode, namely, 90210. Although one's address here is Beverly Hills, the land actually is part of the city of Los Angeles. Beverly Park is one of the nation's most exclusive guard-gated enclaves of palatial multi-million dollar estates.