Martin Luther King, Jr. is a federal holiday marked every year on the third Monday in January. The holiday will fall on Jan. 20 in 2025 and the United States Postal Service will be closed, meaning ...
Mail is not delivered on Martin Luther King Jr. Day, as the U.S. Postal Service shuts down for the holiday and gives employees the day off. The U.S. Post Office will be closed on Martin Luther King Jr ...