Yes, Costco stores will be open on Jan. 20 because Martin Luther King Jr. Day isn't one of the seven holidays observed by the warehouse retailer. Is Target open on Martin Luther King Jr. Day?

The markets will reopen on Jan. 21 and operate under their normal business hours. Is Costco open on MLK Day? Yes, Costco stores will be open on Jan. 20 because Martin Luther King Jr. Day isn't one ...