Pupils from ethnic minorities made up 71 per cent of the increase in primary school numbers

Almost one in three of England’s primary school children is from an ethnic minority — the highest level yet, figures show.

One pupil in five speaks English as a second language, the survey by the Department for Education revealed.

The growth in the number migrants, combined with a baby boom, is putting unprecedented pressure on schools. A growing number of primary schools have become supersized as they struggle to cope with the increase in population.

In only one year there has been a 2.1 per cent increase in the number of pupils at state primary schools in England. This equates to almost 94,000 more children. Ethnic minority pupils made up 71 per cent of the increase.

The report said: “The number of children born to