Age distribution of secondary students in NSW government schools (2011-2024)

Data Notes:

  • Data is collected mid-year (census date: first Friday in August) from NSW government schools as per National Schools Statistics Collection (NSSC).

  • From 2020, students in mainstream support classes are reported by their underlying grade of enrolment. Previously, students in support classes in mainstream schools were not included.

  • Students in schools for specific purposes (SSPs) are not included.

  • Students in distance education and opportunity classes (OC) are included with their appropriate grade levels. Intensive English Centre (IEC) students are included.

  • In most scholastic years there are a small number of students in atypical age groups. For students under 18 years, these have been included in the nearest band. This is indicated with an asterisk. As a result, the sum of each row may not equal the totals reported.

Data Source:

  • Education Statistics and Measurement, Centre for Education Statistics and Evaluation.
Data Source:
  • Data.NSW
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Additional Information
Field Value
Title Age distribution of secondary students in NSW government schools (2011-2024)
Date Published 12/02/2017
Last Updated 22/01/2026
Publisher/Agency NSW Department of Education
Licence Creative Commons Attribution
Update Frequency Annually
Contact Point NSW Department of Education
open.data@det.nsw.edu.au
Temporal Coverage 01/01/2011 - 31/12/2024
Geospatial Coverage
Data Portal Data.NSW