Mahopac Bank, Yonkers Branch Basic Info Reviews Routing Numbers Map & Direction Name: Mahopac Bank, Yonkers Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 766 Yonkers Avenue Yonkers, New York 10704 Westchester County View other branches Phone: 914-966-9800 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer021910836YN021911398YY From: To: