Provident Bank, South Amboy Basic Info Reviews Routing Numbers Map & Direction Name: Provident Bank, South Amboy Main Office: No Service: Full Service Brick and Mortar Office Location: 600 Washington Avenue South Amboy, New Jersey 08879 Middlesex County View other branches Phone: 800-448-7768 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer021205499YN021214053YN221271197YY221271993YN221272154YN221272303YY From: To: