Bank Mutual, Fond Du Lac Branch Basic Info Reviews Routing Numbers Map & Direction Name: Bank Mutual, Fond Du Lac Branch Main Office: No Service: Full Service Brick and Mortar Office Location: W6606a Highway 23 Fond Du Lac, Wisconsin 54937 Fond Du Lac County View other branches Phone: 920-923-1010 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer275071330YY275970981YN From: To: