Investar Bank, Mandeville Branch Basic Info Reviews Routing Numbers Map & Direction Name: Investar Bank, Mandeville Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 4892 Louisiana Highway 22 Mandeville, Louisiana 70471 St. Tammany County View other branches Phone: 985-246-1000 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer065405365YN065405459YY065405527YN From: To:
