Short Answer: Yes!
We emailed head office and also checked a few local stores to make sure that Kroger supermarkets had stamps available. Every store we went to had stamps available and Kroger head office confirmed they are a licensed distrubuter of USPS stamp sheets.
While Kroger has a huge range of products they don't have the same range of stamps as a USPS outlet. It is worth noting that Kroger does not sell indivual stamps. The only stamps available from Kroger supermmarkets are sheets and booklets of stamps.
The stamps sold are USA Forever stamps which raise in value every time the cost of stamps increases. This means that if you buy the stamps now and do not use them all they will still work even years later even if the price for sending mail has increased. They also sell first class mail stamps if you prefer those.
There are a number of advantages to buying stamps at Kroger instead of say a USPS storefront. Here are a few good reasons:
Kroger seems to keep their stamps behind the counter and out of the reach of the public. Just ask at the counter and they can hand you a sheet.
Kroger owns and operates nearly 2800 stores across America including hypermarkets, supermarkets, superstores, department stores and fuel centers. With so many stores chances are their is a Kroger supermarket somewhere near you. with annual revenue of around 122 billion per year Kroger is one of the largest companies in the world and Americas largest chain of supermarkets. Kroger has sold postage stamps through their stores for a number of years helping to make it easier for the average American to send mail accross the country and around the world.