It doesn't matter which superlative you pick: 25 Los Angeleses. 100 San Joses. 2,000 Poways. Nearly three Californias. That's how many people will be added to the United States population by the year 2050. They are not all going to live in Los Angeles, San Jose, or Poway, but a great many of them are going to live in California, thus pushing the state's population to about 60 million, according to the state Department of Finance.