Summary:
The River Delta Joint Unified school district operates three high schools serving grades 9-12: two comprehensive schools, Rio Vista High and Delta High, and the smaller Mokelumne High (Continuation), which serves a specialized student population.
When comparing the two main high schools, Delta High stands out for its exceptional student completion rates, boasting a 98.5% graduation rate and 0% dropout rate, which are well above state averages. Rio Vista High, the larger school, shows more consistent year-to-year performance rankings. However, both schools face significant academic challenges, with proficiency in core subjects like math and English falling substantially below state averages, indicating a gap between graduation success and standardized test performance.
The district's overall ranking places it in the bottom third statewide, yet its graduation rate exceeds the California average. A notable finding is that higher per-student spending does not automatically correlate with better outcomes; Delta High achieves its top-tier graduation results with the lowest spending among the comprehensive schools. Parents should note that while the schools successfully guide most students to graduation, supporting academic proficiency, particularly in mathematics, remains a critical area for improvement across the district.
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