Isabella Bank, Weidman Branch Basic Info Reviews Routing Numbers Map & Direction Name: Isabella Bank, Weidman Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 3388 North Woodruff Road Weidman, Michigan 48893 Isabella County View other branches Phone: 989-644-3347 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer072403004YY072405167YN072406412YN072413968YN072414446YN From: To: