United States Government--post Office Flyger Chancellor, SD 57015 Phone : (605) 647-2798 Business Category Government Offices-Federal Post Offices Government Offices & Public Schools Post Office - Chancellor 224 Main St Chancellor, SD 57015 Phone : (605) 647-2798 Business Category Post Offices Toll-Free           (800) ASK-USPS Fax           (605) 357-4906 United States Government--lennox, Post Office, Chancellor 224 S Main Lennox, SD 57039 Phone : (605) 647-2798 Business Category Government Offices-Federal Post Offices Government Offices & Public Schools