San Francisco, CA

Are Costco stores open or closed on Memorial Day, Monday May 31, 2021?

Ed Walsh
San Francisco's Costco store i the South of Market AreaEd Walsh

Memorial Day is an important day to remember those in the military who have died in service to the country but it is not a day off for everyone. Workers in the service and food industry are kept very busy every day. But what about the retail stores? What about our beloved Costco store in the South of Market San Francisco?

The Costco stores will be closed Monday, May 31, for Memorial Day. Below is Costco's complete list of closures in 2021:

  • New Year’s Day
  • Easter
  • Memorial Day
  • Independence Day
  • Labor Day
  • Thanksgiving
  • Christmas

Costco has long had a reputation for being very worker-friendly, so that culture may have played a part in the store closing for Memorial Day. The other major store in San Francisco, Target, is open on Memorial Day. Major supermarkets, including Safeway, are open regular Monday hours for Memorial Day 2021.

The following major chain stores are open on Memorial Day:


Dollar General


Home Depot

Rite Aid

Trader Joe’s



Whole Foods

Costco began here in California. The company's first location, opened in 1976 under the Price Club name, was in a converted airplane hangar in San Diego. It was originally serving only small businesses but the fledging company found it could achieve far greater buying clout by also selling to non-business members. The first Costco Warehouse store opened in 1983 in Seattle. Costco merged with Price Club in 1993 under the name PriceCostco with 206 locations.

"Our operating philosophy has been simple," the company explained on its Web site. "Keep costs down and pass the savings on to our members. Our large membership base and tremendous buying power, combined with our never-ending quest for efficiency, result in the best possible prices for our members. Since resuming the Costco name in 1997, the company has grown worldwide with total sales in recent fiscal years exceeding $64 billion. For additional information about Costco, download the Costco Story in a PDF format to learn more.

"Costco has transformed the retail world. When entrepreneur Sol Price introduced a groundbreaking retail concept in San Diego, California. Price Club was the world's first membership warehouse club, a place where efficient buying and operating practices gave members access to unmatched savings."

Costco has long had a reputation for paying its employees well. The chain also has a generous benefits package. And by allowing their employees to have major holidays, including Memorial Day, off, it undoubtedly will help it keep its employees longer than other stores.

Memorial Day is a holiday for all but essential government offices including the United States Postal Service. That means almost all Post Offices will be closed and there will be no mail delivery on Memorial Day. Mail service will resume on Tuesday, June 1, 2021.

All courts and City Hall, including San Francisco City Hall will remain closed. Most public transit will be operating on reduced schedules. Check with your local transit agency before heading out.

So if you have a burning desire to visit Costco on Memorial Day, just hang on one more day. The store reopens on Tuesday, June 1, 2021.

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