Summary (tl;dr)

Many people are searching to find out if Costco warehouses will be open on Martin Luther King Jr. Day 2026, as the federal holiday often leads to altered business hours. While some sources initially suggested closures, it has been widely confirmed that Costco will operate under its regular business hours on MLK Day 2026.

Essential Background

Martin Luther King Jr. Day is a U.S. federal holiday observed annually on the third Monday of January, commemorating the birthday and legacy of the civil rights leader. It was signed into law as a federal holiday in 1983 and first observed in 1986, with all 50 states officially observing it by 2000. The day is often recognized by the closure of federal offices, banks, and post offices, and is also designated as a national day of service.

The Full Story

With Martin Luther King Jr. Day falling on Monday, January 19, 2026, many consumers are turning to search engines like Google to determine if their local Costco warehouses will be open. While many federal holidays see Costco locations closed, the company has a policy of remaining open on MLK Day, maintaining normal business hours. This means that most Costco warehouses across the nation, including their Business Centers, will be accessible to shoppers. Gas stations and pharmacies within Costco locations will also generally follow the regular operating schedules, though it's always recommended to check specific local hours.

Why It Matters

The trending searches reflect a common concern among consumers: planning errands and shopping around federal holidays when many services and businesses may be closed. Knowing Costco's operating status allows members to plan their bulk shopping trips and grocery runs effectively, preventing wasted journeys to closed stores. This is particularly important as the three-day holiday weekend often provides an opportunity for families to complete larger shopping tasks.

Geographic Location

• United States (nationwide interest in Costco's operating hours on Martin Luther King Jr. Day 2026)