St Petersburg/Clearwater/Tampa has an increasing number of high net worth households, according to the Tampa Bay Business Journal. They quote numbers from a study by IXI Corporation, which has defined high net worth households as having a net worth of at least $3 Million. (There are lots of definitions of high net worth, so it pays to look into how a study defines it). From 2006 to 2007 the number increased by nearly 30% and their assets increased by nearly 24%. Not unexpectedly, most of these have made their own wealth, rather than inherited it. That must partly account for the new record sales of home prices.
The St Petersburg area is also seeing more billionaire yacht coming here, and those figures of course aren't included in the households here.