Isabella Bank, Six Lakes Branch Basic Info Reviews Routing Numbers Map & Direction Name: Isabella Bank, Six Lakes Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 313 West Bridge Street Six Lakes, Michigan 48886 Montcalm County View other branches Phone: 989-365-3511 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer072403004YY072405167YN072406412YN072413968YN072414446YN From: To: