Champlain National Bank, Plattsburgh Branch Basic Info Reviews Routing Numbers Map & Direction Name: Champlain National Bank, Plattsburgh Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 32 Cornelia Street Plattsburgh, New York 12901 Clinton County View other branches Phone: 518-562-1776 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer021310407YY021314416YN From: To: