I recently saw a terribly-low-quality version of the image above on Facebook (with the attribution cut off, of course) and thought I would look into it. It is from the National Low Income Housing Coalition‘s report comparing income and rent across the country. The full report can be found here. Their website also contains some tools to calculate how much an individual would have to make in order to afford various rents. Their assumption that no more than 30% of the household income will be dedicated to rent seems extremely unrealistic, and contributes to their extremely high numbers, but this assumption in itself could be an interesting starting point for a class discussion when coupled with the map above.