Letter mail delivery in O'Fallon, Illinois

Welcome to the United States Postal Service located at 1111 South Lincoln Avenue, O'Fallon, Illinois 62269. Our facility is dedicated to serving the O'Fallon community with a comprehensive range of postal and financial services. As both a local government office and a post office, we are committed to ensuring the efficient and reliable delivery of your mail and packages. Our friendly and knowledgeable staff are here to assist you with all your postal needs, including mailing, shipping, and receiving services, as well as providing money orders and other financial transactions. Whether you're sending a letter across town or a package around the world, you can count on us for dependable service. Visit us today and experience the convenience and reliability of the United States Postal Service in O'Fallon.