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Average Size of One Teacher Classes, Maintained Schools 
| Primary | Secondary | |||||
| 1997 | 2007 | Difference | 1997 | 2007 | Difference | |
| Darlington LA | .. | 27.4 | .. | .. | 21.6 | .. |
| Durham LA | 28.5 | 25.3 | -3.2 | 22.5 | 20.8 | -1.7 |
| Gateshead LA | 25.8 | 24.6 | -1.2 | 20.4 | 20.3 | -0.1 |
| Hartlepool LA | 28 | 25.4 | -2.6 | 22 | 21.8 | -0.2 |
| Middlesbrough LA | 26.5 | 23.6 | -2.9 | 22 | 19.5 | -2.5 |
| Newcastle upon Tyne LA | 27.6 | 25.8 | -1.8 | 21.5 | 20.3 | -1.2 |
| North Tyneside LA | 27.1 | 25.3 | -1.8 | 21.9 | 20.5 | -1.4 |
| Northumberland LA | 27 | 24.1 | -2.9 | 22.6 | 22.1 | -0.5 |
| Redcar and Cleveland LA | 27.4 | 24.3 | -3.1 | 22.2 | 21.5 | -0.7 |
| South Tyneside LA | 27 | 25.3 | -1.7 | 22.7 | 20.2 | -2.5 |
| Stockton-on-Tees LA | 26.8 | 25 | -1.8 | 22.2 | 21.7 | -0.5 |
| Sunderland LA | 26 | 24.7 | -1.3 | 21.3 | 20.3 | -1.0 |
| North East Region | 27.2 | 25 | -2.2 | 22 | 20.9 | -1.1 |
| 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.