[arbeiter]

Los Angeles is an interesting case, because it's both a very populous county and also has a large raw number of millionaires.

Harris County is perhaps the most interesting of all, because not only is it very populous, but being a millionaire in Houston is like being a multi millionaire in LA. You can live very handsomely on a relatively modest income there. So I would say Harris County has to be the bang-for-buck winner. $1 million buys you a shack in Santa Clara county, in Houston it buys you a bona fide pre-war mansion or mansionette, 3 luxury high-rise 1 bedroom apartments, or, if you're tacky, a McMansion with acreage galore, 3 car garages, 6 or 7 bedrooms, a circular driveway, etc.

Also, New York County (Manhattan) is only like 1.5 million people.