the United States. 33 Hayward 150,878 140,943 Alameda 34 Pasadena 150,185 143,400 Los Angeles Premier City of the San Gabriel Valley subregion; home of the Rose Bowl and Rose Parade , NASA 's Jet Propulsion Laboratory , and the California Institute of Technology . 35 Torrance 149,111 141,420 Los Angeles Torrance, 21