Who are the Top 10 US retailers? The answer will only partially surprise you as this IBtimes.com article lays it in black and white and mostly green.
Walmart, Kroger (owner of Ralph's, Fry's Food and Drug, and Fred Meyer to name a few), Costco, and Target top the list with CVS, Walgreens, and more on there. For you toy fans out there, this is why Hasbro and others are interested in breaking in these markets - getting your stuff out to thousands of locations is a Big Deal, especially now when toys aren't at their highest point culturally.
CVS and Walgreens stores have an obscene number of locations, so getting in there is also more than a little bit of a Big Deal.
Knowing where Americans spend money gives us all a great insight as to where toys could end up, and the changing direction of how we as a country are spending our money, and where.