Ontario Public School Enrollment by Grade and Board

Student enrollment data from Ontario's public and Catholic school boards, reported annually via the Ontario School Information System. The Government of Ontario collects and publishes these figures, which include counts by grade, school, and board, with privacy protections applied to small numbers. The dataset was last updated in February 2026.

Use Cases

• Analyze enrollment trends by school board name and school type over multiple academic years.
• Model student population distribution across grade levels for capacity planning.
• Compare enrollment figures between public and Catholic school systems using board name and school type columns.
• Identify schools with suppressed enrollment data (counts under 10) to understand data privacy impact on analysis.

Strengths

• Data is sourced from the official Ontario School Information System (OnSIS), an authoritative government collection.
• Includes privacy protection through suppression of counts under 10 and rounding to the nearest five for other figures.

Limitations

• Excludes data from private schools, hospital schools, and adult education programs, limiting scope to public and Catholic systems.
• Data granularity is reduced as counts are rounded to the nearest multiple of five for privacy.

Provenance

Source

Government of Ontario via the Ontario School Information System (OnSIS).

Collection Method

Reported by school boards in the OnSIS October submission for each academic year.

Time Range

Annual academic year data.

Freshness

Updated annually (October submission for each academic year).

Geography

Province of Ontario, Canada.