Bank Mutual, 749 Main Ave Branch Basic Info Reviews Routing Numbers Map & Direction Name: Bank Mutual, 749 Main Ave Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 749 Main Ave De Pere, Wisconsin 54115 Brown County View other branches Phone: 920-337-2414 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer275071330YY275970981YN From: To: