Cosumnes Oaks High — Rating & test scores

The 2024–25 Scope Score, in the current-formula row below, uses the state’s college-or-career readiness measure, 2024–25. No verified earlier Scope Scores are available here.

Chronic absence and suspension are CDE’s all-students school rates for each year.

What each level means: California's level descriptions.

A grade the school doesn't teach has no row. “Suppressed” marks a result CDE blanks because fewer than 11 students tested (CDE’s reporting rule); “none tested” marks a grade CDE lists with no students tested; “not on file” marks a result missing from the records we hold. None of them means zero.

Two reported school years only; no intervening-year result is implied. Where fewer than 100 students were counted, the cell shows the count and no change is printed. Source: CDE school-level chronic absenteeism by student group.

These source periods and populations differ: graduation uses an adjusted cohort, while A–G completion and college-going use separately reported groups. The rates are shown individually, without a shared performance tier.

Source: UC admissions by source school. Dated fall first-year UC applicants, admitted students, and enrollees. GPA is each group's mean weighted, capped high-school GPA for 10th/11th-grade college-preparatory courses. SchoolScope leaves GPA unavailable when several CEEB codes contribute rather than combining their means. UC blanks counts under 5 applicants or under 3 admits or enrollees, shown here as “under 5” or “under 3”; — means unavailable, and a reported zero remains zero. A + marks a partial SchoolScope sum of observed counts, not a complete total; missing contributions may be zero. No admit rate is computed here. Complete, matching counts can support a historical descriptive rate, but do not establish a school's effect or predict individual chances. Series shown from 2016.

Source: UC admissions by source school. Dated fall first-year UC applicants, admitted students, and enrollees. Campus totals are not interchangeable with Universitywide; students can apply to several campuses. Universitywide is separately reported; never derive it by adding campus rows. Universitywide applicant and admit counts are unduplicated. UC blanks counts under 5 applicants or under 3 admits or enrollees, shown here as “under 5” or “under 3”; — means unavailable, and a reported zero remains zero. A + marks a partial SchoolScope sum of observed counts, not a complete total; missing contributions may be zero. No admit rate is computed here; these records do not establish a school's effect or predict individual chances.

Authorization ≠ a section running this year — the Ledger records what the school may teach, not seat counts.

These counts aren’t part of the Scope Score. “Not reported” means the federal record has no value for that item; it isn’t a zero. Enrollment counts add the male and female students the survey reports.

452 students who finished high school, class of 2023 · state-reported college-going rate 83% · % column is computed by SchoolScope (count ÷ all who finished high school; CDE calls them completers), not a CDE-native rate · an unavailable or suppressed cell is marked as missing; a reported zero remains distinct · source: CDE 12-mo CGR, 2023 cohort (the newest published), National Student Clearinghouse match — a different, older vintage than the fall 2025 UC admissions rows above.

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Data sources: public data sources, including the California Department of Education · state tests (CAASPP) 2025–26 · Scope Score from 2024–25 results, compared across 1,498 high schools · attendance and suspensions by student group from 2018–19 and 2025–26 · district finance for the year each row names · Census survey (ACS) 2020–2024 · UC fall first-year source records — UC blanks counts under 5 applicants or 3 admits or enrollees; “+” marks a partial count; the all-campus total is reported separately · AP courses the College Board approved, 2025–26 (approved to teach, not enrollment) · federal civil rights data (CRDC) 2023–24, a past snapshot · state college-going records, class of 2023, matched to National Student Clearinghouse enrollment · Data updated October 15, 2026