Class-Size Tracker

Smaller classes across Ontario

This chart shows how class sizes* have gotten smaller since 2003. It shows the percentage of Ontario's primary classes* by the number of students in the class.

Provincial Total
Percentage of Primary Classes by Class Size*
  20 or fewer 21 22 23 Total 23 or fewer * 24 25 or more
2003-2004 31% 10% 11% 12% 64% 11% 25%
2004-2005 40% 11% 12% 11% 74% 9% 17%
2005-2006 48% 12% 11% 10% 81% 7% 12%
2006-2007 65% 12% 10% 7% 93% 3% 3%
2007-2008 88% 5% 3% 3% 100%  <1% <1%
2008-2009 90% 3% 3% 4% 100% 0% 0%
2009-2010 91% 3% 3% 3% 100% 0% 0%
2010-2011 90% 3% 3% 4% 100% 0% 0%
2011-2012 91% 2% 3% 4% 100% 0% 0%
2012-2013 90% 3% 3% 4% 100% 0% 0%
2013-2014 90% 3% 3% 4% 100% 0% 0%
2014-2015 90% 3% 3% 4% 100% 0% 0%

*Notes:

  • Primary class size percentages have been rounded to the nearest decimal.
  • Totals may not add up due to rounding.
  • The government's full-day kindergarten (FDK) program is not included in primary class size calculations. Classes under the full-day kindergarten program differ from other primary classes by having two educators - one teacher and one early childhood educator - in the classroom. Where an FDK class has 15 students or fewer, only a teacher is required in the classroom.

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