A wave of California residents recently has been moving out of the state. To see what is driving that trend, look no further than the price of housing; the Golden State dominates a list of U.S. neighborhoods with the most expensive home values.
Of the top 20 ZIP codes with the highest median home value in the U.S., 15 are located in California. The Bay Area city of Atherton, ZIP code 94027, topped the list with a median home value of $6.8 million, according to research compiled by Zillow Group.…