Summary
Waltham Senior High is a public high school in Waltham, MA, just west of Boston, serving grades 9–12 with 1,791 students. It is part of the Waltham district, which ranks 231st of 351 Massachusetts districts. The school ranks 224th of 353 in 2025–2026 but remains a 2-star school. In 2025–2026 10th-grade MCAS results, it was slightly above its district average but below the state in every subject: ELA 33.9%, Math 37.84%, Science 26.8%, and Physics 29.19%. Math is the relative strength; Science and Physics are weakest. ELA, Science, and Physics have generally declined since 2022–2023, though Math rebounded.
Graduation and dropout are also concerns. In 2024–2025, Waltham Senior High had a 79.3% graduation rate and a 15.5% dropout rate. Both were better than the Waltham district averages, but they trail most nearby high schools. Belmont High, Lexington High, Weston High, and Arlington High had roughly 97.5%–99.7% graduation and near-zero dropout. Newton North High had 94.8% graduation and 1.9% dropout; Minuteman Regional High had 95.5% and 4.0%; Watertown High had 89.7% and 7.9%. The drop from 84.4% graduation in 2023–2024 to 79.3% in 2024–2025, with dropout rising from 9.9% to 15.5%, is a reversal.
Subgroup effectiveness is uneven: the school ranks low for English Language Learner students (9th percentile) and low-income students (15th percentile), while special education students rank 37th percentile. Resources do not explain outcomes—Waltham Senior High spent $22,250 per student and had a 10.4 student-teacher ratio, more than Belmont High and Lexington High spent and a lower ratio than Belmont High and Arlington High, yet outcomes are much lower. Nearby, Belmont High, Lexington High, Weston High, Newton North High, and Arlington High outperform Waltham Senior High by 30–50+ proficiency points in many subjects, and Watertown High and Minuteman Regional High also outperform it. Within its own district, Waltham Senior High is stronger than Waltham Valor High School, which had a 30.0% graduation rate and 35.0% dropout rate in 2024–2025. Overall, it has improved its state rank over the past decade but still faces significant challenges in proficiency, graduation, dropout, and support for English Language Learners and low-income students.
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