Pioneer Bank, St. James Branch Basic Info Reviews Routing Numbers Map & Direction Name: Pioneer Bank, St. James Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 123 Armstrong Boulevard South St. James, Minnesota 56081 Watonwan County View other branches Phone: 507-375-3201 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer091904050YY091913096YN From: To: