United States Government--postal Service, Postal Mount Union Office Mount Union, PA 17260 Phone : (814) 542-2566 Business Category Government Offices & Public Schools Passport Application Services - Mount Union 35 W Market St Mount Union, PA 17066 Phone : (814) 542-2566 Business Category Passport Application Services Toll-Free           (800) ASK-USPS Post Office - Mount Union 35 W Market St Mount Union, PA 17066 Phone : (814) 542-2566 Business Category Post Offices Toll-Free           (800) ASK-USPS U S Government--postal Service, Mount Union Mount Union, PA 17066 Phone : (814) 542-2566 Business Category Government Offices-Federal Government Offices & Public Schools United States Government--postal Service, Mount Union Market & Jefferson S Mount Union, PA 17066 Phone : (814) 542-2566 Business Category Government Offices-Federal Government Offices & Public Schools