Champlain National Bank, Westport Branch Basic Info Reviews Routing Numbers Map & Direction Name: Champlain National Bank, Westport Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 6478 Main Street Westport, New York 12993 Essex County View other branches Phone: 518-983-3316 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer021310407YY021314416YN From: To: