Ontario Public and Catholic School Enrolment Data

Ontario public and Catholic school enrolment data, reported annually via the Ontario School Information System (OnSIS). The dataset includes board and school identifiers, school level, type, language, and enrolment counts. Data is maintained by the Government of Ontario, with the latest update in February 2026.

Use Cases

• Analyze enrolment trends by school_level and school_type over time.
• Compare student counts across different school_language categories (e.g., English, French).
• Assess the distribution of students among different board_name entities.
• Identify schools with specific enrolment ranges for resource allocation planning.

Strengths

• Data is sourced from the official Ontario School Information System (OnSIS).
• Includes both public and Catholic school authorities.
• Covers multiple school years, with methodology notes provided from 2018-2019 onward.

Limitations

• Enrolment counts for small cells (fewer than 10 students) are suppressed.
• Starting 2018-2019, enrolment numbers are rounded to the nearest five, which may affect precise summation.
• Excludes private schools and certain specialized facilities, limiting scope.

Provenance

Source

Government of Ontario, via Ontario School Information System (OnSIS) October submissions.

Collection Method

Administrative data reported by schools and maintained by education boards.

Time Range

Multiple school years; specific start year not provided.

Freshness

Last updated in February 2026.

Geography

Province of Ontario, Canada.