Union Bank, Westphalia Branch Basic Info Reviews Routing Numbers Map & Direction Name: Union Bank, Westphalia Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 202 East Main Street Westphalia, Michigan 48894 Clinton County View other branches Phone: 989-587-5400 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer072404320YY072414433YN From: To: