Summary
River Valley Charter School is a small K–8 charter school serving 288 students in Newburyport, MA, and it operates as its own district, River Valley Charter (District), which ranks 96th of 351 Massachusetts districts (73rd percentile, 4 stars) — in line with Newburyport and ahead of Triton, Pentucket, and Amesbury. At the school level, River Valley Charter School ranks 389th of 899 schools (57th percentile, 3 stars), placing it below Pine Grove, Newbury Elementary, and Dr John C Page School.
Reading and science are clear strengths. On 2025–2026 MCAS tests, 63.16% of students met expectations in English language arts (state: 40.03%) — the highest all-grade ELA rate among nearby schools, ahead of Pine Grove (61.23%) and Newbury Elementary (59.72%). Science proficiency was 73.44% (state: 40.98%), second locally only to Pine Grove. Grades 7–8 are exceptionally strong: 7th grade ELA 84.38%, 8th grade ELA 78.79%, 8th grade math 81.82%, and 8th grade science 81.82%. Because most nearby schools end at grade 5 or 6, these upper-grade results have no direct local comparison — and they are a big reason the district earns 4 stars even though the school ranks 3 stars.
Math is the clearest weakness, concentrated in grades 3–6: 3rd grade 33.33%, 4th grade 23.33%, and 5th and 6th grade 32.26% each. River Valley's all-grade math (45.79%) trails Francis T Bresnahan Elementary, Pine Grove, Dr John C Page School, and Newbury Elementary. ELA and science have improved recently, while math has stayed roughly flat. The student–teacher ratio of 11.4 is mid-range for the area, and free/reduced-lunch data were not available, so economic comparisons are not possible.
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