Just how rich is Bill Gates? According to Forbes, he’s the world’s richest person and is worth $77.5 billion. But that kind of wealth is hard to wrap your head around, so let’s put it another way: Gates could buy every single home in the entire city of Boston. That’s 114,212 single-family homes, condos and townhouses, at a total purchase price of $76.6 billion.

Which billionaire could buy your city map

Given that the average American struggles to afford a home, we wanted to illustrate just how many homes the wealthiest among us could buy. Here’s a table of some of the billionaires on the Forbes’ 400 Wealthiest list, each paired with a city that billionaire could hypothetically buy. For the sake of this illustration, we assumed that wealthy families, such as the Waltons of Wal-Mart and the Koch brothers, would pool their money if they were going to purchase an entire city.

Redfin Chief Economist Nela Richardson puts this wealth in perspective:

While Bill Gates is the richest single person, several of the Waltons are among the superrich. The family could choose from any of a number of large cities in which to buy up every home, including these 10:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

These home value numbers are estimates, and these are just hypothetical scenarios, but they do highlight how far a billion dollars can go. If you were a billionaire, or if you are currently, which city would you buy? Tell us in the comments or on Twitter or Facebook.

If you’re curious what your city or town is worth, or who could afford to purchase your city, download this spreadsheet. The list of billionaires can be found on the Forbes website.

The billionaire’s wealth was pulled from the Forbes list on May 15, 2014. We calculated the value of all homes in a city or town by first taking all MLS sales between April 1, 2013 and April 1, 2014. We used those sales as a representative sample of all homes in a city. If 10 percent of homes sold in a city for $1 billion, then we’d estimate the values of all homes in the city are $10 billion. Only single-family homes, condos and townhomes were included. In Texas, home prices were estimated by looking at the list price of homes rather than sale prices.