First Interstate Bank, Watertown, SD Instalment Loans Business Loan Personal Loans Car Title Loans Online Loans Watertown, SD 624 5th Street Southeast. ZIP Code: 57201 (605) 884-5370 South Dakota, Watertown, Instalment Loans About First Interstate Bank Opening Hours Monday 9:00 AM – 4:00 PM Tuesday 9:00 AM – 4:00 PM Wednesday 9:00 AM – 4:00 PM Thursday 9:00 AM – 4:00 PM Friday 9:00 AM – 4:00 PM Saturday Closed Sunday Closed Sarah E Erickson | Fairway Independent Mortgage Corporation Loan Officer Instalment Loans in Watertown, South Dakota Dakotaland Federal Credit Union Watertown Instalment Loans in Watertown, South Dakota First Interstate Bank on the map Show on Google Map