First Guaranty Bank, Jennings Branch Basic Info Reviews Routing Numbers Map & Direction Name: First Guaranty Bank, Jennings Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 500 North Cary Avenue Jennings, Louisiana 70546 Jefferson Davis County View other branches Phone: 337-824-1712 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer065201381YN065404340YY065404353YN From: To: