In what came as a surprise to absolutely no one, San Francisco has been named the city with the second largest income gap between the rich and the poor in a recent study. 

According to a recent Brookings Institution ranking, the top 5% of households in San Francisco rake in an average of $423,000 a year, while the bottom 20% make closer to $24,000.

Only Atlanta, Georgia—where the wealthiest people make nearly 20 times more than the city's poorest citizens—beat out SF for the top spot. 

"Cities like San Francisco have high inequality because they have the highest incomes in the nation," says Alan Berube, deputy director at Brookings.

And while the Bay Area and other cities are attempting to counteract the inequality with new minimum wage laws, it might take years to make a significant change in the gap. San Francisco, especially, is facing a bigger problem: With the average 1-bed apartment going for $4,000 or more a month, some of the poorest San Franciscans are simply moving away.

See how the rest of the U.S. ranked: 

1. Atlanta 
2. San Francisco 
3. Boston 
4. Miami 
5. Washington, D.C.
6. New York City
7. Dallas
8. Chicago 
9. Los Angeles
10. Minneapolis

Brookings, a D.C.-based think tank, analyzes inequality each year based on the most recent data. This year was based on 2013 data.