One direct economic consequences of depression was : unemployment. During depression, a lot of business go bankrupt because they cannot afford to pay off their debt. As more and more businesses go under, a lot of people started to lose their job and couldn't afford to support their family
The answer is: Cities
Approximately, around 80% of united states population live in the cities. This happen because most of job opportunities that exist in united states (whether it's art, technology, or manufacturing) are located in the cities.
Because of this, even people who born in rural areas start to move to inner cities in order to find jobs and sustain their living.