Security First Bank Address: 401 3rd Ave, Martin, SD 57551 Phone: (605) 685-6776 Banks Other Businesses: American Family Insurance - Gary Nelson at 203 Pugh St, Martin, SD 57551 Crossroads Inn-Martin at Highway 18 & 73, Martin, SD 57551 Martin Livestock Cafe at 504 E Bennett Ave, Martin, SD 57551 Dairy Queen at 215 W Bennett Ave, Martin, SD 57551