San Gabriel Valley - Cities and Communities

Cities and Communities

The San Gabriel Valley is in Los Angeles County. The incorporated cities and unincorporated neighborhoods of the San Gabriel Valley include:

Whittier, like Montebello, is considered both a San Gabriel Valley city and part of the Gateway Cities region. Some of Whittier sits below the Puente Hills. Although these hills are small compared to the San Gabriel Mountains, the fact that most of the city sits around them makes Whittier a San Gabriel Valley city. This is similar to Montebello, which is a member of the Gateway Cities Council of Governments, despite geographically being part of the San Gabriel Valley.

San Dimas, Claremont, Pomona, Diamond Bar, and La Verne are adjacent to the San Gabriel Valley, and although are properly considered part of the Pomona Valley, they are also commonly considered part of the San Gabriel Valley. The 57 Freeway (Orange Freeway) is generally considered the dividing line between the Pomona and San Gabriel Valleys. However, for statistical and economic development purposes, the County of Los Angeles generally includes these five cities as part of the San Gabriel Valley. The community of El Sereno, in the city of Los Angeles, is situated at the westernmost edge of the Valley. Unofficial estimates place the combined population of the San Gabriel Valley at around 2 million—roughly a fifth of the population of Los Angeles County.