First Interstate Bank, Sully, IA Instalment Loans Business Loan Personal Loans Car Title Loans Online Loans Sully, IA 610 4th Street. ZIP Code: 50251 (641) 594-4400 Iowa, Sully, Instalment Loans About First Interstate Bank Opening Hours Monday 9:00 AM – 5:00 PM Tuesday 9:00 AM – 5:00 PM Wednesday 9:00 AM – 5:00 PM Thursday 9:00 AM – 5:00 PM Friday 9:00 AM – 5:00 PM Saturday Closed Sunday Closed First Interstate Bank on the map Show on Google Map