Northern State Bank, Washburn Iga Branch Basic Info Reviews Routing Numbers Map & Direction Name: Northern State Bank, Washburn Iga Branch Main Office: No Service: Full Service Retail Office Location: 226 West Bayfield St. Washburn, Wisconsin 54891 Bayfield County View other branches Phone: 715-682-8826 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer091206402YN091510253YN From: To: