Summary
Westborough High is a public high school serving grades 9–12 in Westborough, MA, with 1,213 students. In 2025–2026 it ranked 29th of 353 Massachusetts high schools—the 92nd percentile—with 5 stars. That fits a long run near the top: 23rd in 2024–2025, 30th in 2023–2024, 7th in 2022–2023, 15th in 2021–2022, and 5th in 2020–2021. Its only recent 4-star year was 2017–2018, at 51st of 345. The takeaway is a consistently top-decile school that has come off its very highest recent peak.
Academically, 10th-grade proficiency in 2025–2026 was 71.63% in English language arts, 76.07% in math, 73.61% in science, and 72.63% on the Biology end-of-course test—each 26 to 35 points above state averages. School scores closely track district scores in Westborough, suggesting the performance is systemic. The 2024–2025 graduation rate was 96.6% with a 1.9% dropout rate. The student-teacher ratio was 12.7 in 2024–2025, and per-student spending was $16,178 in 2020–2021, the latest year provided. Free/reduced-lunch percentages are not available in the data, so economic composition cannot be described.
Compared with nearby schools, Westborough High is second only to Hopkinton High in this group. It outranks Algonquin Regional High, Shrewsbury High School, Nipmuc Regional High, Grafton High School, Blackstone Valley, Marlborough High, Assabet Valley Vocational High School, and North High. It trails Hopkinton in every core subject and the Advanced Math and Science Academy Charter School in ELA and math. Westborough spends less than Algonquin, Blackstone Valley, Marlborough, and Assabet yet posts higher proficiency than most of them, so results do not simply track spending. The school also performs well across student groups: low-income students rank around the 88th–90th percentile with 4 stars, and special education students rose to 87th percentile in 2025–2026 from 56th the prior year.
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