Security First Bank ← View details 401 3rd Avenue, Martin, SD 57551 +1 605-685-6776 security1stbank.com Suggest an Edit Name* State* Locality* ZIP* Street address* Phone* Website Opening hours Monday: 09:00 am — 04:00 pm Tuesday: 09:00 am — 04:00 pm Wednesday: 09:00 am — 04:00 pm Thursday: 09:00 am — 04:00 pm Friday: 09:00 am — 04:00 pm Saturday: 08:30 am — 11:30 am Your comments * — Required information