Northwest Bank, Stonybrook Basic Info Reviews Routing Numbers Map & Direction Name: Northwest Bank, Stonybrook Main Office: No Service: Full Service Brick and Mortar Office Location: 3649 East Market Street York, Pennsylvania 17402 York County View other branches Phone: 877-672-5678 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer041201114YN041202702YN243374218YY From: To: