A high school gym in Eagle was the stage for Costco's first showdown with neighbors.

The fact that Sam's Club likes to copy Costco benefits the people who shop there.

A new Costco warehouse store has been proposed in Lake St. Louis and could become the St. Louis region's sixth Costco ...

Costco has submitted plans to Lake Saint Louis to build a 195,000-square-foot store on Lake Saint Louis Boulevard, across ...

Let these snacks do the heavy lifting.

It's not a loss leader. It's the canary in the coal mine.

Costco members are showing strong support for the retailer after it sued the Trump administration. Here’s what the lawsuit is ...

From fresh snacks to holiday treats and returning bakery favorites, Costco shoppers are buzzing about these seven new items ...

For the four weeks ended Nov. 30, Costco grew its net sales 8.1% to $23.6 billion. Sales for the 12 weeks preceding that date ...

Tensions flared as nearly 200 Eagle residents packed a gymnasium to oppose Costco's plans, voicing concerns about traffic ...

Are Costco's financial products actually good deals? Some are excellent — the rewards card, travel packages, business services. Others fall short. Here's what deserves your money (and what doesn't).

A homeowner group fighting a Costco store in East Naples has reached a compromise with the big box retailer. The compromise ...