Post offices are closed today because it is Columbus Day, a federal holiday observed on Monday, October 13, 2025. Due to this federal holiday, the United States Postal Service (USPS) has closed all post office locations for the day, and regular mail delivery and retail services are suspended. Only Priority Mail Express items are being delivered today, with normal mail services expected to resume tomorrow, October 14, 2025. Columbus Day commemorates the arrival of Italian explorer Christopher Columbus in the Americas in 1492. Some states observe it as Indigenous Peoples' Day to honor Native American history and culture. While USPS is closed, private carriers like FedEx and UPS continue operations, although UPS may have delays on some services tied to USPS. Thus, post offices being closed today is due to the federal holiday of Columbus Day.