Northwest Bank, Youngsville Basic Info Reviews Routing Numbers Map & Direction Name: Northwest Bank, Youngsville Main Office: No Service: Full Service Brick and Mortar Office Location: 202 East Main Street Youngsville, Pennsylvania 16371 Warren County View other branches Phone: 814-563-9080 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer041201114YN041202702YN243374218YY From: To: