- US US-IaGG MS/MS 01.80-15
- Box
Sidney, Sigourney, Sioux City, Sioux Rapids, Spillville, Spirit Lake, Springville, Stanton, State Center, Story City, Strawberry Point, Sumner, Sutherland Tabor, Tama, Tipton, Traer Ute Valley Junction, Van Horn, Villisca, Vinton Wadena, Wapello, Washington, Washta