Bank Mutual, 10296 West National Avenue Branch Basic Info Reviews Routing Numbers Map & Direction Name: Bank Mutual, 10296 West National Avenue Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 10296 West National Avenue West Allis, Wisconsin 53227 Milwaukee County View other branches Phone: 414-545-8480 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer275071330YY275970981YN From: To: