Information on schools and pupils is published at the annual ‘Schools, pupils and their characteristics’ statistical release, available to view here: https://www.gov.uk/government/statistics/schools-pupils-and-their-characteristics-january-2017.
The school roll of pupils at state schools in England and the school roll by year group can be found in Table 1d in the National tables: SFR28/2017.
The school roll in (a) reception and (b) sixth form for individual schools can be found in the Underlying data: SFR28/2017 of the annual ‘Schools, pupils and their characteristics’ statistical release, contained in file ‘SFR28_2017_Schools_NCYear_UD’. The figures can be filtered by local authority name (column H).
Information for earlier years (from 2010 onwards) can be found at: