Each month, 15.4 million copies of Costco Connection are mailed out to members. Another 300,000 are distributed via Costco ...

Napa County’s first Costco opened Friday morning to a long line of excited customers. One of our Napa reporters, who had ...

A special guest cut the ribbon at 7:30 a.m. Friday and people rolled in, led by whiskey enthusiasts who had been camping ...

The gas station is open from 6 a.m. to 9:30 p.m. on weekdays, 6 a.m. to 8 p.m. on Saturday and 7 a.m. to 7 p.m. on Sunday.

Years in the making, Costco is set to open a new warehouse this week in Napa. The long-planned mega-store opens at 10 a.m.

Costco reported that it has dropped prices on some of its Kirkland brand items during its fourth quarter earnings call. Gary Millerchip, Costco chief financial officer, said in last Thursday's ...

At the store where everything is sold in bulk, more precious metals are being sold as Costco adds platinum to its lineup. The company sold more than $100 million in gold bars in a three-month ...

Costco is expanding its precious metals offerings, building on top of its rollout last year of gold bars, which often sold out within hours. The retailer is now adding 1-ounce platinum bars to its ...

Optical memory devices, which use light to read and write data, offer the potential of durable, fast and energy-efficient storage. "We worked out the basic physics behind how the transfer of ...

If you're self-employed or don't have generous vision insurance coverage through work, Costco Optical can help you save money on out-of-pocket costs for eye care. (And my local Costco Optical ...

Is Costco still worth it after the price hike? Costco offers benefits you might not know about. See how to get the most of ...