First Bank, Raritan Township Branch Basic Info Reviews Routing Numbers Map & Direction Name: First Bank, Raritan Township Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 334 Route 31 Flemington, New Jersey 08822 Hunterdon County View other branches Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer021214163YN031207924YN031207966YN From: To: