South Middle School

South Middle School is a junior high of reasonably sized scale in Braintree, Massachusetts, part of Braintree, instructing 635 students in grades 5 through 8.

Across the 10 schools in Braintree (5,392 students total), South Middle School accounts for its share of the district's footprint.

For racial and ethnic makeup, South Middle School reports that the largest single group is White, at 60% of enrollment. The remainder is composed of 27% Asian, 6% Hispanic, 3% multiracial, 3% Black. By comparison, Norfolk County as a whole is about 70% White, so the school skews meaningfully less White than its surroundings.

On the resource side, The school currently runs with 55 full-time-equivalent teachers, for a student-teacher ratio near 11.6:1. That tracks the state average closely.

In the surrounding community, ACS estimates for Norfolk County put median household income runs about $130,739, roughly 59% of adults have completed at least a four-year degree, and the poverty rate sits near 4%. South Middle School is one of 198 public schools in Norfolk County (combined enrollment of about 101,300 students).

The closest other public school is Liberty, roughly 0.2 miles away. Within five miles, there are 8 other public schools.

Geographically, the school is in a suburban area.

Trend over the last 7 years. Over the past 7-year window, the student count contracted 5%: 666 students in 2018 compared to 635 in 2025. Over the same period, the White share shrank from 76% to 60%. The student-to-teacher ratio pulled in from 13.8:1 in 2018 to 11.6:1 today.

On the community side, the page collects discussion, questions, and updates around science fair prep, picture-day reminders, and bus-route questions. Anyone with firsthand experience at this school can post or comment.