Costco is set to open four new locations in North America this month, including three in the United States. The next wave of ...

Here are Costco's normal hours, exclusive Executive Member shopping hours, and the best times to visit to avoid crowds.

Costco Wholesale reported its earnings results, noting that extended hours for executive members have boosted U.S. weekly sales by 1% since being introduced in June.

Costco's CEO said the extended hours for executive members boosted weekly sales by 1% and led more US shoppers to upgrade.