Walmart-owned Sam's Club saw a huge jump in this year's customer satisfaction rankings, while Costco's score slipped slightly.

While Costco still holds the top spot, its score remains unchanged as its two biggest competitors each improved by three points in an annual survey.

Hand holding Costco membership card in front of warehouse - PJ McDonnell/Shutterstock There is a lot to love about Costco: bulk groceries for unbeatable prices, Kirkland Signature products that have ...

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A viral video of a Costco customer returning a couch purchased over two years ago sparked online discussion about the wholesale retailer’s return policy and whether customers are abusing it. A woman ...

Costco customers won't hold back if they're upset, but these upgrades to the chain's offerings, app, food court, and layout ...

"It's apparent...we aren't able to satisfy you," reads a letter received by the shopper, who tried to return an 8-year-old printer before having her membership revoked. Costco is known for having one ...

Are you using your Costco Wholesale membership to its fullest? A Costco customer took to social media to show members what they may be missing out on when it comes to their wholesale membership. Ravi ...

As a new Costco rises on Collier Boulevard at Rattlesnake Hammock, we take a look at what makes this iconic brand so ...