Sterling Federal Bank, F.S.B., Sterling Federal Bank, F.S.b. Basic Info Reviews Routing Numbers Map & Direction Name: Sterling Federal Bank, F.S.B., Sterling Federal Bank, F.S.b. Main Office: Yes Service: Full Service Brick and Mortar Office Location: 110 E 4th St Sterling, Illinois 61081 Whiteside County View other branches Phone: 815-622-3441 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer271173494YY271972679YN From: To: