The average income per child in an independent school in Australia is more than 25 per cent higher than their public school counterparts and nearly 40 per cent higher than those in the Catholic system, new data shows.

The average net income for a student in an independent school was $15,182 in 2011, the most recent year available, surpassing the average $12,034 that is received per child in the government sector and $11,079 that is received per child in the Catholic sector.

Illustration: Rocco Fazzari

The latest financial data and NAPLAN results were made public on the MySchool website on Wednesday, the fourth year the information has been published.

The national average net recurrent income per student across sectors in 2011, which includes public funding, fees and other contributions, was $12,337, up 4.9 per cent on the 2010 figure of $11,757.