Bank Mutual, 3340 South 27th Street Branch Basic Info Reviews Routing Numbers Map & Direction Name: Bank Mutual, 3340 South 27th Street Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 3340 South 27th Street Milwaukee, Wisconsin 53215 Milwaukee County View other branches Phone: 414-671-6330 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer275071330YY275970981YN From: To: