Summary:
Northboro-Southboro is served by a single high school: Algonquin Regional High in Northborough, MA, which enrolls 1,197 students in grades 9–12 and belongs to the Northboro-Southboro district. Because it is the only high school in the area, there is no local peer comparison to make; the most useful benchmarks are Massachusetts state averages, the district's own record, and the school's performance over time.
The school is a strong performer. The district ranks 27th of 351 districts statewide — the 92nd percentile, with 5 stars — while the school itself ranked 37th of 353 high schools in 2025–2026 (90th percentile, 4 stars), 36th of 349 in 2024–2025 (90th percentile, 4 stars), and 21st of 348 in 2023–2024 (94th percentile, 5 stars). So while it has slipped a little from its 2023–2024 position, it remains roughly a top-10% Massachusetts high school. Test proficiency is far above state levels in every reported subject: gaps range from about 25 to 34 percentage points. English Language Arts at 10th grade was 70.57% proficient versus the state's 45.48% in 2025–2026, and math was 73.05% versus 43.73%. The largest advantages appear in science and biology — 71.53% versus 37.68% in 2025–2026 Biology End of Course, and 79.29% versus 45.89% in 2024–2025 Science.
Outcomes are equally strong: a 98.3% graduation rate (district 97.7%) and a 0.7% dropout rate (district 1.0%). Resources look favorable, with a 10.8:1 student-teacher ratio and $19,074 per-student spending in 2020–2021, though that spending figure is not current. Free/reduced lunch data is blank/unknown, so it cannot be analyzed and should not be read as zero.
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