Costco Will Be Closed on the 4th of July (2023) by Rhonda July 22, 2023 131 Happy Independence Day! Costco will be closed on Tuesday, July 4, 2023. Even though Costco stores are closed in observance of Independence Day, costco.com is open and usually has a huge sale! Check out the deals at costco.com, while supplies last. 1 FacebookTwitterPinterestEmail previous post Costco Unadvertised Sales! JULY 2023 next post Costco Business Center Coupon Book JULY / AUGUST 2023 You may also like Cyber Monday Deals at Costco.com! Swedish Dish Cloths at Costco! NEW Kirkland Signature Croissant Breakfast Sandwich at Costco! Costco Holiday Event DECEMBER 2023 Costco Black Friday Deals Start Now at Costco.com! Costco.com Thanksgiving Day-Only Sale!