Grand Island - Diers Avenue While we appreciate all the technological advances that have made banking faster, more secure and more convenient, we also love when our customers stop in and say hi. Grand Island Mailing Address PO Box 1507, Grand Island, NE 68802-1507 Diers Avenue 2009 North Diers Avenue, Grand Island, NE 68803 Phone: (308) 384-4840 Fax: (308) 385-0514 Lobby Hours Drive-Up Teller Hours 8:30 AM-4:30 PM, Mon-Fri 8:00 AM-5:30 PM Mon-Fri 8:30 AM-12:00 PM, Sat 8:00 AM-12:00 PM, Sat *Notice: Clicking on the links in the map will take you directly to Google Maps and result in you leaving the bank’s website.