Keystone Savings Bank ← View details 81 Main Street, Keystone, IA 52249 +1 319-442-3218 ksbiowa.com Suggest an Edit Name* State* Locality* ZIP* Street address* Phone* Website Opening hours Monday: 08:00 am — 05:00 pm Tuesday: 08:00 am — 05:00 pm Wednesday: 08:00 am — 05:00 pm Thursday: 08:00 am — 05:00 pm Friday: 08:00 am — 06:00 pm Your comments * — Required information