Currently, there are 45 US airports in the Global Entry program (with some scattered in Canada, Guam, and Ireland). 1  Share on Facebook. 2  Pin it.
The original big-box Walmart store is now called a Discount Store, and the company has been closing these stores or converting them to Supercenters for at least the last 5 years. In 2010, the company had 810 Discount Store; the number has shrunk to 508 in 2014. The average size is 105,000 square feet.
Lately, though, many grocers known for gigantic mega-supercenters are trying out store models shrunk down to the size of the old neighborhood market. A few years back, the average size of a grocery store was measured at over 45,000 square feet, up from 35,000 square feet in the mid-â90s. The supersizing of supermarkets may have come to an end, however. The shrinking of grocery stores has been a noticeable trend in recent years.