The Department for Education has published statistics for looked after children in England for the financial year 2015-2106 (this includes adoption). Key figures include: there were 70,440 looked after children at 31 March 2016, an increase of 1% compared to 31 March 2015; in 2016 the number of looked after unaccompanied asylum seeking children was 4,210, an increase of 54% compared to 2015.
Source: Department for Education Date: 29 September 2016
Further information: Children looked after in England (including adoption) year ending 31 March 2016 (PDF)