U S Government Of--us Postal Service, Allentown Post Office 1000 Postal Rd Lehigh Valley, PA 18002 Phone : (610) 266-5300 Business Category Government Offices-Federal Post Offices Government Offices & Public Schools United States Government Continued--post Offices, Allentown 442 W Hamltn Catasauqua, PA 18032 Phone : (610) 266-5300 Business Category Government Offices-Federal Post Offices Government Offices & Public Schools