The Costco treasure hunt approach keeps customers coming back for more. That's reshaping the shopping landscape nationwide — but what will it mean for the region when the chain opens in Amherst?

Checking out the latest vintage of a nice Napa Valley wine from Costco, the Kirkland Signature Napa Valley Cabernet Sauvignon. Cabernet Sauvignon from Napa Valley, California. This Kirkland Signature ...

Plans for a new Costco in Las Vegas cleared another hurdle Wednesday. Clark County commissioners adopted a development agreement with Costco Wholesale Corp. for its planned location in the southwest ...

Costco is raising pay for most workers as Friday night deadline looms on a new contract with its unionized employees.