If the San Gabriel Valley was represented by a pie in the pastry case, it would be a pie that is extremely diverse and unique. It would be a pie that is split into several different flavors, flavors that represent multiple types of culture, businesses, and households. Here are a few quick facts about the demographics within the San Gabriel Valley:


  • The combined population of incorporated cities and unincorporated communities in the San Gabriel Valley is approximately 1.8 million in 2012, almost a fifth of the population of Los Angeles County.
  • The region is larger than the metropolitan areas of Las Vegas, Manhattan, Philadelphia, San Diego and San Francisco. If it were a county, the San Gabriel Valley would be larger than that of 52 of California‚Äôs 58 counties.
  • The average size of a household in the San Gabriel Valley according to the 2010 Census was 3.81 persons compared with 2.98 persons for Los Angeles County as a whole.
  • Five cities and unincorporated areas in the Valley had average household sizes of over 4 persons, while an unincorporated area, the South San Jose Hills, recorded a hefty 4.99 persons per household.
  • At the other end of this scale was Sierra Madre at 2.26 persons per household and South Pasadena at 2.43.
  • In terms of age distribution, a larger share of the population was aged 15-19.

Census and Demograhics Reportsalt
A Community of Contrasts: Asian Americans, Native Hawaiians and Pacific Islanders in Los Angeles County - Asian Americans Advancing Justice 2013
The New Generational Future of LA County - USC Price April 2013
San Gabriel Valley: Changing Demographics - Rose Institute of State & Local Government, Claremont McKenna College 2012
SGV 2010 Census Data - Excerpt from the 2011 SGV Economic Forecast & Regional Overview, LAEDC April 2011
L.A. Stats - LAEDC 2006 Edition
SGV 2000 Demographic Profile - U.S. Census Bureau 2000

2010 Census Information by Area

Alhambra Diamond Bar La Canada Flintridge Rosemead Temple City
Altadena Duarte La Puente Rowland Heights Valinda
Arcadia East Pasadena La Verne San Dimas Vincent
Azusa El Monte Monrovia San Gabriel Walnut
Baldwin Park Glendora Montebello San Marino West Covina
Bradbury Hacienda Heights Monterey Park Sierra Madre  
Claremont Industry Pasadena South El Monte  
Covina Irwindale Pomona South Pasadena


San Gabriel Valley Economic Partnership
4900 Rivergrade Road, Suite B130, Irwindale, CA 91706
Phone (626) 856-3400  Fax (626) 856-5115  Email:
Office Hours: Monday - Friday 9:00 a.m. - 5:00 p.m.