St. Martin School is located off Reg. Rd. 20 just west of the Town of Smithville. The original school was built in 1964. A large addition was added to the school in 1984 consisting of a library, gymnasium and a number of classrooms. A second addition of a Senior Kindergarten classroom was completed in 1993. In 2005, construction was completed on an addition of 8 new classrooms and a special needs room.

Total enrolment as of September 2011: 371