Who is the biggest grocery store chain?
Emily Sparks
Published Jan 21, 2026
WALMART INC.
We combine Walmart and Sam's Club's for purposes of this list. Although Walmart is not classified as a supermarket it dominatesthe U.S.
In its noun form, the word generally means a resident or citizen of the U.S., but is also used for someone whose ethnic identity is simply "American". The noun is rarely used in English to refer to people not connected to the United States when intending a geographical meaning.
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What is the biggest grocery store chain in America?
Leading supermarkets in the U.S. 2020, based on retail salesFounded in 1883 in Cincinnati, Ohio (where it is still headquartered), by Bernard Kroger, The Kroger Co. has become the largest supermarket chain in the United States and the second largest overall retailer, only behind the retailing giant, Walmart.