(NYSE: WMT) is the largest company in the world by sales. It has more stores than any other retailer, and it continues to grow at a healthy pace. If you're considering buying Walmart stock, here's what you need to know.

Walmart owns 10,700 stores worldwide, including 4,600 in the U.S. The company says that 90% of the U.S. population lives within 10 miles of one of its stores, but it continues to open new stores at a healthy, though slow, pace. It's a discount retailer, and while it sells a large range of merchandise, it's concentrated in grocery. Among its U.S. stores is Sam's Club, a warehouse model similar to Costco Wholesale.

Image source: Walmart.

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Source Fool.com