Most of this comes as no surprise, because its mostly east coast and west coast real estate markets, but Alpine New Jersey?  That was a new one for me.  It has a median household income of $125,000, which I believe is just a hair higher than Douglas County CO!  And no Florida?  What's up with that?  At least Colorado was represented in the top 10 most expensive zip codes for buyers at #4 and they are calling it Woody Creek, which is outside Aspen.  Go Aspen!