Grinnell State Bank, Johnston Branch Basic Info Reviews Routing Numbers Map & Direction Name: Grinnell State Bank, Johnston Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 5601 Merle Hay Road Johnston, Iowa 50131 Polk County View other branches Phone: 515-278-6300 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer073901725YN073915342YN From: To:
