There's lots of ways this data could be interpreted. If you look at the data by national origin, a contributor to the outflow of "domestic migration" is first-

There's lots of ways this data could be interpreted. If you look at the data by national origin, a contributor to the outflow of "domestic migration" is first-generation children of foreign immigrants to California. This net flow is a just a fact of life for any state that receives large influx of foreign immigration. The immigrants move here and their children, having no particular long-standing roots in the state, move around. California has more than twice as many foreign-born residents as any other state, and more than three times as many as Texas. These foreign-born women in turn have more children than natural citizens of the state (about 90 per 1000 women per year).