See Wal-Mart/Stores for a listing of Rochester area stores with addresses and phone numbers.
Walmart (aka Wal-mart, Wal-M art, Wal*Mart) is a global chain store, started in 1962 by Sam Walton in Rogers, Arkansas. The Walmart headquarters is still in nearby Bentonville, Arkansas.
There are now several related enterprises under the Walmart umbrella:
Walmart Retail - the thousands of Walmart stores dotting the landscape.
Walmart.com - subsidiary for online business
Sam's Club - 700+ outlets worldwide
Pharmacy departments in most retail stores
Walmart has undergone several logo changes during it's history, the current and previous logo's are seen at the right.1
Notes and References
Walmart on Wikipedia