Lincoln Financial Group's mailing address is typically outlined on their official website. For general correspondence, the address is often listed as One Granite Place, Concord, New Hampshire, 03301. However, it is important to note that the specific mailing address can vary depending on the type of service or product you are inquiring about. For the most accurate and current information, it is always a good idea to visit the Lincoln Financial Group's website directly, where the proper contact details will be provided. It is essential to ensure that you are using the correct mailing address when sending important documents or inquiries to avoid any delays in communication.