No, Costco will not be open on July 4th. Costco warehouses will be closed on Independence Day, as it is one of the seven holidays the company observes annually. However, Costco's biggest competitor, Sam's Club, will be open on July 4th with modified hours3.
Many major retailers and grocery stores will be open on July 4th, including Walmart, Target, Starbucks, McDonald's, Home Depot, Lowe's, CVS, and Walgreens. However, Costco warehouses will be closed. It is advised to check with local stores for their specific holiday hours.
Banks and post offices will be closed on July 4th in observance of Independence Day. This includes branches of Capital One, Bank of America, PNC, Truist, CitiBank, and JPMorgan Chase1. The United States Postal Service (USPS) will also be closed, with no regular residential or business mail deliveries34.