Those statistics are revealing, but not terribly surprising. Do we honestly think that San Diego is a haven for working, middle-class families? As was previously posted, the majority of San Diego homeowners are likely older and past the point of child rearing. The child rearing demographic is either in college, living with the parents, packing a bowl on their way out to Pacific Beach, and/or living with 2 or more roommates and struggling just to earn a living. Many married couples have to have 2 incomes just to afford to live here.
As I have said numerous times on this forum, many young, educated middle class people and couples that I know have left San Diego or California altogether. They saw the writing on the wall and came to the realization that the Sunshine Tax, Traffic Congestion Tax, Illegal Immigrant Tax, and Housing Bubble Tax were just too big a price to pay.
Believe me, there are many things that I love about California. However, you have to look at it like any other product or service out there. In my opinion it is less and less desirable for middle class families to live and prosper here. SoCal has much more competition today than it did 30 or 40 years ago when it was THE place to be in the US. I think if home prices come down 50%, good paying jobs become more plentiful, traffic congestion is reduced, and state government adopts more tax and business-friendly policies, you’ll start to see more opportunities for middle class couples to raise a family here.