High Schools in Chelmsford

Chelmsford, Massachusetts is home to a single high school, Chelmsford High School, which serves grades 9-12 and has established itself as a standout institution in the state. This high-performing school ranks in the top 23% of Massachusetts high schools and has maintained a 4-star rating from SchoolDigger for the past three years, indicating its strong overall academic performance.

Chelmsford High School boasts impressive test scores, with students significantly outperforming the state average on MCAS Next Generation assessments in core subjects like English Language Arts, Mathematics, Science, and Biology. For example, in the 2024-2025 school year, 75.43% of 10th graders were proficient or better in ELA, compared to the state average of 50.66%. The school's consistent academic excellence is further reflected in its high 4-year graduation rate of 93.9% and low dropout rate of 1.1%.

With a favorable student-teacher ratio of 14:1 and per-student spending that exceeds the state average, Chelmsford High School appears to be allocating resources effectively to support student learning and achievement. While the school's performance is generally strong, there may be opportunities to further improve in areas like Science and Biology, where proficiency rates, though still above the state average, are lower than in ELA and Math.