The
Los Angeles Times wrote in 2004, "When Beverly Hills was incorporated in 1914, the northern border was roughly north of
Sunset Boulevard, with the exception of Trousdale Estates. The remaining section stretching north to
Mulholland Drive was left as part of the hills of Los Angeles, where it remained anonymous for decades". In the 1920s, the federal government decided to have the Beverly Hills post office serve the area now known as BHPO, which was then a rural area, much of it part of Doheny Ranch. By the 1940s people bought BHPO homes because they were less expensive than in Beverly Hills, despite higher property taxes. In 1963, the area was included within the 90210 ZIP Code, which also covers the northern part of Beverly Hills. Property taxes were higher in Los Angeles than in Beverly Hills until
1978 California Proposition 13 equalized property taxes, making BHPO more attractive. ==Post Office==