Many Michigan residents rely on the United States Postal Service (USPS) to deliver and receive important mail and packages. The USPS has announced that customers in Michigan can expect some changes, including stamp prices. USPS Reveals 2026 Rate Plans Including Stamp Prices In MichiganUSPS has been working on changes in Michigan and the U.S. as part of its 10-year Delivering for America plan. The USPS announced that the price of a stamp to mail a 1-ounce single-piece First-Class letter will not increase in early 2026. The Postal Service said in a press release that it remains committed to continued cost-saving measures and keeping products and services affordable.