
Martin Luther King Jr. Day is a federal holiday observed on the third Monday in January, and in 2026, it falls on Monday, January 19. If you’re planning to stock up on essentials or take advantage of January deals, Costco will be open and ready for shoppers.
Costco Warehouse Hours on MLK Day 2026
Costco warehouses will operate under regular business hours on MLK Day:
- Monday–Friday: 10:00 a.m. – 8:30 p.m.
- Saturday: 9:30 a.m. – 6:00 p.m.
- Sunday: 10:00 a.m. – 6:00 p.m.
The food court will also be open, and gas stations typically follow warehouse hours. However, hours may vary by location, so it’s best to check the Costco Store Locator (costco.com in Bing) before heading out.
Is Costco’s Business Center Open on MLK Day 2026?
Yes, Costco Business Centers will be open on MLK Day 2026. These centers cater to small businesses and offer bulk items not typically found in standard warehouses.
Typical Business Center hours:
- Monday–Saturday: 7:00 a.m. – 6:00 p.m.
- Sunday: Closed (some locations open 8:00 a.m. – 4:00 p.m.)
As always, check your local Business Center’s hours online, as they may differ by region.
Does Costco Have an MLK Day Sale?
Costco does not run a specific MLK Day sale, but you can still find January savings in the monthly Costco Coupon Book. Expect discounts on:
- Electronics
- Appliances
- Health and wellness products
- Pantry staples
These deals are available in-store and online at Costco.com, which operates 24/7 year-round.
Costco Holiday Closures in 2026
Costco typically closes for seven major holidays each year. In 2026, Costco will be closed on:
| Holiday | Date |
|---|---|
| New Year’s Day | Thursday, January 1 |
| Easter Sunday | April 5 |
| Memorial Day | Monday, May 25 |
| Independence Day | Saturday, July 4 |
| Labor Day | Monday, September 7 |
| Thanksgiving Day | Thursday, November 26 |
| Christmas Day | Friday, December 25 |
Costco will remain open on MLK Day, Presidents Day, Columbus Day, and Veterans Day.
Are you planning a Costco run this MLK Day? Let us know what’s on your shopping list in the comments.
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Amanda Blankenship is the Chief Editor for District Media. With a BA in journalism from Wingate University, she frequently writes for a handful of websites and loves to share her own personal finance story with others. When she isn’t typing away at her desk, she enjoys spending time with her daughter, son, husband, and dog. During her free time, you’re likely to find her with her nose in a book, hiking, or playing RPG video games.






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