Yes, Costco will be open this Monday. Its warehouses will be open during regular business hours from 9 a.m. to 08:30 p.m. for ...

Want to head to Costco on MLK Jr. Day, but not sure if Costco is open or closed on the federal holiday? Here's their hours ...

Martin Luther King Jr. Day is observed on Monday, Jan. 29, 2026. Several federal offices and services will be closed, and ...

Costco is known for closing on several official holidays, which is why many people wonder whether it will be open on Martin ...

While Costco warehouses are closed on many major holidays throughout the year, stores will remain open on Martin Luther King ...