The rich have always liked to live near other rich. It's what F. Scott Fitzgerald referred to as the "consoling proximity of millionaires."
But with the housing recovery and global wealth now in full swing, the nation's richest ZIP codes just seem to be getting richer.
(Read More: America's Most Expensive Rentals)
A new report shows that Beverly Hills is still the top ZIP code in America when it comes to the number of homes selling for $10 million or more. There were 21 homes sold at $10 million or more between January 2012 and December 2012, the latest period measured.