Harper Charter School

Harper, OR · Harper SD 66 · Grades K–12

Ontario, OR-ID

SchoolDecoder rankings are coming soon for Harper Charter School.

We're building decoded rankings for the Ontario, OR-ID area, separating school quality signals from neighborhood advantage. Rankings will appear here once the school meets our suppression and confidence thresholds.

In the meantime

High School Outcomes

Latest available data

Graduation 2024

Graduation
73%
2024 cohort · 95% extended · 40 students in cohort
9th-grade on-track
82%
17 in cohort · SY 2023-24

Data limitations

  • Graduation uses state cohort data. Coursework, offerings, and SAT/ACT counts use the latest available federal CRDC extracts, which can lag current graduation data.
  • SAT/ACT data is count-only in this extract; without an enrollment denominator, we do not treat it as a participation rate.
  • HS Decoded Rank is alpha-only: it summarizes how the school's grade 10/11 test scores compare to expectations from its demographic context, ranked against other HSs in the same metro / state / rural cohort. Graduation, AP, and SAT/ACT data above are descriptive context — they are not yet blended into the composite rank. The achievement-vs-decoded quadrant below plots context-adjusted ACHIEVEMENT (alpha) against raw achievement; it is NOT the growth-based composite shown for elementary and middle schools, because a single-tested-grade high school has no consecutive-grade cohort ladder from which to build a growth signal.