A round-up and latest key statistics regarding women affected by the criminal justice system. Women are held in 12 prisons in England. There are no women’s prisons in Wales. There is currently one women’s prison in Scotland, with some women held in units within men’s prisons. In Northern Ireland women are held in a unit within a male Young Offenders Institution. The number of women in prison in England and Wales stood at 4, 020 on 7th July 2017.