Northstar Bank, Seaway Community Bank Main Office Br Basic Info Reviews Routing Numbers Map & Direction Name: Northstar Bank, Seaway Community Bank Main Office Br Main Office: No Service: Full Service Brick and Mortar Office Location: 1960 Fred W Moore Highway Saint Clair, Michigan 48079 St. Clair County View other branches Phone: 810-329-9500 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer072414064YY072414129YN From: To: