Grinnell State Bank ← View details 1101 Court Avenue, Marengo, IA 52301 +1 319-642-5511 grinnellbank.com Suggest an Edit Name* State* Locality* ZIP* Street address* Phone* Website Opening hours Monday: 08:30 am — 04:00 pm Tuesday: 08:30 am — 04:00 pm Wednesday: 08:30 am — 04:00 pm Thursday: 08:30 am — 04:00 pm Friday: 08:30 am — 05:00 pm Saturday: 08:30 am — 12:00 pm Your comments * — Required information