Diamond Bar, California is a largely residential city located in the eastern region of Los Angeles County. It is conveniently situated where the Orange and Pomona freeways meet, just about 25 miles away from downtown Los Angeles. Diamond Bar's location and economy make it an excellent commuter town with many employment opportunities.

The city was named after a type of ranching brand known as a "diamond over a bar", which reflects the city's historical foundations in cattle ranching. The ranching industry helped lay the foundation for Diamond Bar's economic progress. Currently, top employers in Diamond Bar, California include major organizations such as Allstate, Traveler's, and South Coast Air Quality Management District. Many Diamond Bar residents enjoy a close commute to other employment sites nearby in the region.

Diamond Bar is particularly known for its focus on family life and communal events. For example, the city holds weekend Farmer's Markets, regular Book Fairs, and other similar functions. Residents enjoy participating events such as the Holiday Home Decorating Contest. Other attractions in Diamond Bar, California include the T.H. Pendergast Museum and a lush golf course. The city was also one of the first master-planned communities in the U.S.

Lawyers in Diamond Bar, California often assist clients at the Los Angeles County Superior Court, located nearby. Diamond Bar lawyers are able to offer assistance in a broad range of legal categories and topics. Many Diamond Bar attorneys participate in local community events and functions.