Cascade Junior/Senior High School, also known as Cascade High School (CHS) or Cascade Jr/Sr High School of W.D., is a rural public high school in Cascade, Iowa. A part of the Western Dubuque Community School District, it serves grades 7–12. As of 2019, it enrolled 360 students. The communities of Cascade, Bernard, Fillmore, and Temple Hill are in its attendance boundary.