According to this story from the San Francisco Chronicle, it grew by almost 400,000 people in 2009.
An excerpt.
“A report out Thursday from the state Department of Finance says California added 393,000 residents in 2009, pushing the total population on Jan. 1 to an estimated 38,648,000.
“Los Angeles, already the most populous city in the state, added 44,000 residents, expanding its population to 4,094,764.
“The second most populous city, San Diego, added more than 17,000 people, growing to 1,376,173.”
