Powder Mill School

Powder Mill School is one of the mid-sized primary schools in Southwick, Massachusetts, one of the schools within Southwick-Tolland-Granville Regional School District, with 383 students on its rolls from grades 3 through 6.

Southwick-Tolland-Granville Regional School District comprises 3 schools with combined enrollment of 1,295 students; Powder Mill School is among them.

Looking at the student body, Powder Mill School reports that 86% of students identify as White, making the school strongly White-majority; the rest breaks down as 8% Hispanic, 3% multiracial, 2% Asian. By comparison, Hampden County as a whole is about 64% White, so the school skews visibly more White than its surroundings.

In terms of school funding signals, Staff filings list 35 full-time-equivalent teachers, which works out to roughly 10.9:1 students per teacher. Statewide, the average ratio sits near 12.2:1, putting Powder Mill School tighter than the state norm the norm.

In the broader community, ACS estimates for Hampden County put the typical household earns roughly $71,306 per year, about 29% of the adult population holds a bachelor's degree or above, and census figures put the poverty rate at about 12%. Across Hampden County's 168 public schools (combined enrollment of about 68,540 students), Powder Mill School is one campus in the mix.

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

Geographically, the school is in a bedroom-community area.

Looking at the recent track record. Over the past 7-year window, the student count contracted 13%: 442 students in 2018 compared to 383 in 2025. The student-to-teacher ratio fell from 12.5:1 in 2018 to 10.9:1 today.

Within the allk12 community for this school, the feed for Powder Mill School typically covers science fair prep, picture-day reminders, and bus-route questions. Posting is open to anyone connected to the school.