Clark Avenue School

Clark Avenue School is a moderately sized junior high in Chelsea, Massachusetts, operated by Chelsea. The school hosts 673 students in grades 5 through 8. Compared to the state average of about 547 students per school, that is 23% larger than typical.

Chelsea comprises 11 schools with combined enrollment of 6,094 students; Clark Avenue School is among them.

Demographically, Clark Avenue School records that nearly all students (92%) are Hispanic; the rest looks like 4% Black, 4% White. The wider county runs roughly 23% Hispanic, putting the school's mix considerably more Hispanic than the area baseline.

Looking at school resources, Staff filings list 53 full-time-equivalent teachers, which works out to roughly 12.7:1 students per teacher. Statewide, the average ratio sits near 11.5:1, putting Clark Avenue School higher than the state norm the norm.

Zooming out to the county, the surrounding county (Suffolk County) reports that median household income runs about $95,631, roughly 51% of adults have completed at least a four-year degree, and roughly 11% of residents live below the federal poverty line. Clark Avenue School is one of 157 public schools in Suffolk County (combined enrollment of about 75,679 students).

Phoenix Academy Charter Public High School Chelsea is the nearest neighboring public school, about 0.3 miles from this campus. 8 of the 8 nearest public schools sit inside a five-mile radius.

Geographically, the school is in a commuter-belt area.

Looking at the recent track record. Over the past 7-year window, the student count expanded 21%: 554 students in 2018 compared to 673 in 2025. Class-load math has fell: from 17.3:1 in 2018 to 12.7:1 in 2025.

On allk12, the feed for Clark Avenue School typically covers enrollment questions, classroom assignments, and PTA news. Parents, students, alumni, and staff are welcome to weigh in.