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For the 2026 school year, there is 1 public high school serving 49 students in Diagonal, IA.

The top-ranked public high school in Diagonal, IA is Diagonal Junior-senior High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.

Diagonal, IA public high school have an average math proficiency score of 54% (versus the Iowa public high school average of 65%), and reading proficiency score of 65% (versus the 71% statewide average). High schools in Diagonal have an average ranking of 2/10, which is in the bottom 50% of Iowa public high schools.

Diagonal, IA public high school have a Graduation Rate of 50%, which is less than the Iowa average of 87%.

The school with highest graduation rate is Diagonal Junior-senior High School, with ≥50% graduation rate. Read more about public school graduation rate statistics in Iowa or national school graduation rate statistics.

Minority enrollment is 0% of the student body (majority Black and Hispanic), which is less than the Iowa public high school average of 27% (majority Hispanic).