30. McLean, Virginia (Average Household Income: $293,323)

Located just across the Potomac River from Washington, D.C., McLean is famous for being a town blessed with extreme wealth and power. Perhaps not coincidentally, it’s also the location of the headquarters of the CIA.

McLean residents have included former Vice President Dick Cheney, Ethel Kennedy, and former Secretary of State Colin Powel. There are many other diplomats, military men, members of Congress, and government officials who reside in McLean, too.