# of millionaires in cities doesn't make a city "wealthy"--more poor people in most big cities. A better measure, IMO, is the median price of a home--the more money you have to spend for a home, the wealthier the community:

http://www.city-data.com/top3.html

Ntra la porta tua lu sangu � sparsu,
E nun me mporta si ce muoru accisu...
E s'iddu muoru e vaju mparadisu
Si nun ce truovo a ttia, mancu ce trasu.