Best Public Schools in Zip Code 83611

Zip code 83611 is a small, rural school community served by two public schools in the Cascade District: Cascade Elementary School (PK–5, 103 students) and Cascade Junior/Senior High School (6–12, 112 students), which share a common campus.

Academically, the high school is the clear standout. It ranks 15th out of 159 Idaho high schools (top 10%) with a 5-star rating, and its math scores are exceptional: 62.9% proficient across all grades vs. 43.1% statewide, with end-of-course math at 68.8% vs. 33.1% statewide. The elementary school has made a dramatic turnaround, climbing from a 1-star, bottom-17% ranking in 2012–2013 to a 3-star, above-median school by 2025–2026. Its math proficiency (53.2%) exceeds the state average (43.1%), and its ELA jumped 9.3 points in one year to 54.3%, matching the state average. However, the high school’s middle grades (6th and 7th grade ELA) lag the state, even though overall high school ELA is strong at 67.7%.

Both schools face challenges with chronic absenteeism: the high school’s rate is 20.6% and the elementary’s is 16.5%, both above the state’s 13.8%. The elementary school serves more low-income students (43.7% free/reduced lunch) than the high school (32.1%), yet per-student spending is lower at the elementary ($12,062 vs. $16,644) and the student-teacher ratio is higher (14.1 vs. 10.4). Given the very small enrollments, proficiency percentages can shift easily with a few students, but the high school’s consistent top-tier rankings over multiple years suggest its academic strength is real. This is a community where a tiny combined middle/high school achieves outsized results in math, while the elementary school’s recent gains deserve watching—along with absenteeism and early middle-school literacy.