I took a look at some Walmart store expansion numbers to see where the company is expanding. This is current data from February 2015.
First lets go overseas where they are ramping up in South Africa
The current U.S. data is where I found the college campus expansion numbers.
Here is more about the recent growth on college campuses via INSIDE Higher Ed –
In January 2011, Walmart opened its first location on a university campus at the University of Arkansas at Fayetteville, a half-hour drive from its corporate headquarters. Now, Walmart has announced that it will be opening a second campus location, at Arizona State University, with luck by May, according to Delia Garcia, a Walmart spokeswoman. A third location, at Georgia Tech, is slated to open at a to-be-determined time next year. “Walmart on campus is an opportunity to bring low prices to students, reach new customers and serve our on-campus customers in a convenient way,” Garcia said in an interview.