Post Oak Bank, N.A., Anahuac Branch Basic Info Reviews Routing Numbers Map & Direction Name: Post Oak Bank, N.A., Anahuac Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 1500 Miller Street Anahuac, Texas 77514 Chambers County View other branches Phone: 409-267-3171 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer113024957YY113109128YN From: To: