If you’re hoping to stop at Costco on MLK Day 2025, which falls on Monday, Jan. 20, here’s everything you need to know. Costco members are in luck on MLK Day this year. The warehouse will be open during its regular business hours on Monday from 10 a.m. to 8:30 p.m., similar to last year.

While most government functions will not be operating on Monday, most grocery stores, big box stores and restaurants will remain open. Major chain stores such as Target, Costco, Walmart, The Home Depot, Jewel-Osco and Mariano's will remain open on the holiday.

Monday, January 20, commemorates the birthday of the Rev. Martin Luther King Jr. This year, the holiday coincides with President-elect Donald Trump’s inauguration, though the majority of business closures will be for MLK Day.