Big Stone School

Big Stone School is a micro-enrollment primary school in Sand Coulee, Montana, one of the schools within Centerville Elem. The school teaches 17 students in grades pre-K through 8. That puts it 90% leaner than the typical public school in Montana, which averages around 167 students.

Centerville Elem comprises 5 schools with combined enrollment of 242 students; Big Stone School is among them.

On demographics, Big Stone School records that the student body is overwhelmingly White (100%). By comparison, Cascade County as a whole is about 84% White, so the school skews considerably more White than its surroundings.

In terms of school funding signals, Staff filings list 2 full-time-equivalent teachers, which works out to roughly 8.3:1 students per teacher. The state averages around 11.9:1, so this campus is tighter than the state norm typical.

In the surrounding community, community-level numbers for Cascade County indicate median household income runs about $67,690, 28% of adults hold a bachelor's degree or higher, and the poverty rate sits near 8%. Across Cascade County's 45 public schools (combined enrollment of about 11,577 students), Big Stone School is one campus in the mix.

The closest other public school is Centerville High School, roughly 3.1 miles away. 3 of the 8 nearest public schools sit inside a five-mile radius.

Geographically, the school is in a countryside area.

Over the past 7-year window. Looking back 7 years, enrollment at Big Stone School has edged down 55%, going from 38 students in 2018 to 17 in 2025. Class-load math has narrowed: from 18.4:1 in 2018 to 8.3:1 in 2025.

Inside the community feed, the feed for Big Stone School typically covers science fair prep, picture-day reminders, and bus-route questions. Contributors range from current parents to recent graduates and teachers.