ESSA Bank & Trust, Allentown Branch Basic Info Reviews Routing Numbers Map & Direction Name: ESSA Bank & Trust, Allentown Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 471-497 Wabash Street Allentown, Pennsylvania 18103 Lehigh County View other branches Phone: 610-798-9480 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer031902041YN231372248YY From: To: