[klipt]

US rank isn't very informative though. It doesn't take into account cost of living, or (assuming they're using pre-tax salary) even the difference in state taxes.

A comfortable salary in Houston would be much less comfortable in San Francisco because you're suddenly paying 10% of your income to state taxes and paying 4x as much rent.

[anovikov]

Correct. Most of people who are statistically upper class (meaning '1%') are living in much pricier places so they don't really feel so upper.