Seattle has the same level of income inequality as Nigeria. Seattle also has about the same GDP as Nigeria, $230 billion. Seattle, however, has about 3.7 million people and Nigeria has 162 million. (The Seattle in my post, and this may not be true in Atlantic's, but I'm almost certain it is, also includes its metropolitan area.)

Market in the ID
  • Market in the ID

Thanks to TV Dinner for the tip.