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England > Yorkshire and The Humber Region
Average Size of One Teacher Classes, Maintained Schools 
| Primary | Secondary | |||||
| 1997 | 2007 | Difference | 1997 | 2007 | Difference | |
| Barnsley LA | 28.9 | 26.6 | -2.3 | 23.2 | 22.6 | -0.6 |
| Bradford LA | 28.3 | 27.6 | -0.7 | 23.2 | 21.2 | -2.0 |
| Calderdale LA | 28 | 25.6 | -2.4 | 20.9 | 20.7 | -0.2 |
| Doncaster LA | 28.1 | 26 | -2.1 | 21.5 | 20.6 | -0.9 |
| East Riding of Yorkshire LA | 28.3 | 25.5 | -2.8 | 21 | 21 | 0.0 |
| Kingston upon Hull LA | 28.8 | 25.9 | -2.9 | 24.3 | 22.7 | -1.6 |
| Kirklees LA | 29 | 26.6 | -2.4 | 22.5 | 22 | -0.5 |
| Leeds LA | 28.3 | 26.6 | -1.7 | 20.7 | 20.1 | -0.6 |
| North East Lincolnshire LA | 28.1 | 24.8 | -3.3 | 23.2 | 21.8 | -1.4 |
| North Lincolnshire LA | 27.7 | 27.1 | -0.6 | 22.5 | 22.1 | -0.4 |
| North Yorkshire LA | 26.3 | 24.3 | -2.0 | 20.6 | 20.4 | -0.2 |
| Rotherham LA | 27.7 | 26.7 | -1.0 | 21.7 | 20.1 | -1.6 |
| Sheffield LA | 26.9 | 27.6 | 0.7 | 22.7 | 22.3 | -0.4 |
| Wakefield LA | 28.2 | 26.3 | -1.9 | 22.2 | 21.9 | -0.3 |
| York LA | 27.6 | 26.1 | -1.5 | 21.6 | 20.7 | -0.9 |
| Yorkshire and The Humber Region | 27.9 | 26.3 | -1.6 | 21.9 | 21.2 | -0.7 |
| England | 27.5 | 26.2 | -1.3 | 21.7 | 21.2 | -0.5 |
The average size of classes taught by one teacher in Maintained Primary Schools in 2007 was 26.2 down from 27.5 in 1997.
In Maintained Secondary Schools the average size of classes taught by one teacher in 2007 21.2 down from 21.7 in 1997.