Muslims represent only 4.7 per cent of the population in England and Wales, according to the most recent Census, yet one in seven prisoners (14 per cent) in England and Wales is a Muslim, according to the statistics.
In some jails the proportion of Islamic inmates is more than one-third, and in Whitemoor, a Category A prison in Cambridgeshire, it is as high as 43 per cent.
The Muslim prison population has increased from 5,502 (7.7 per cent) in 2002 to 11,729 in 2013 (14 per cent) and is set to continue rising rapidly because of the large numbers of Muslim teenagers in youth jails.
Other jails with a startlingly high proportion include Isis (34 per cent) and Feltham (33 per cent), both in London.
Some research suggests around one-third of Muslim inmates are from Caribbean or African backgrounds.
The shadow Justice Secretary, Sadiq Khan, who obtained the statistics, said: “It is astonishing and a huge concern that one in seven prisoners is Muslim. This is compared to just one in 20 of the population.