Located in eastern Los Angles County, Diamond Bar was named after “diamond over a bar” branding iron registered in 1918 by ranch owner Frederick E. Lewis. It is conveniently located at the junction of the Pomona and Orange freeway. Diamond Bar is primarily residential with shopping centers interspersed throughout the city.
Similar to many San Gabriel Valley cities such as San Marino and Arcadia. Diamond Bar has experienced an influx of Asian American residents – especially Filipino-Americans, Taiwanese-Americans, Chinese-Americans, Vietnamese-Americans, Korean-Americans, and Indian-Americans – since the 1980s. Attracted to the area’s school and the perceived prestige of a Diamond Bar address. Many affluent Asian Americans commuting to areas such as Rowland Heights and Alhambra have moved to Diamond Bar.
It also features one of the most exclusive 24 hour security gated communities in the San Gabriel Valley area – The Country Estate.