Sunflower Bank, Hays Main Office Basic Info Reviews Routing Numbers Map & Direction Name: Sunflower Bank, Hays Main Office Main Office: No Service: Full Service Brick and Mortar Office Location: 1010 East 27th Street Hays, Kansas 67601 Ellis County View other branches Phone: 785-625-8888 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer101100621YY101101015YN101102043YN101102849YN101103644YN101910617YN102101425YN102104590YN107000521YN From: To: