Yes, the United States Postal Service (USPS) will be delivering on Christmas Eve 2023. As a holiday, Christmas Eve is a busy time for the USPS, with many people sending and receiving last-minute packages and letters. The USPS will be operating with extended hours on Christmas Eve to ensure that packages and mail are delivered in time for Christmas. However, it's important to note that delivery times may vary depending on the specific service level and destination. For accurate and up-to-date information on USPS delivery times, it's recommended to check the USPS website or contact your local post office directly.