The Fair Admissions Campaign, of which Ekklesia is a member, has published groundbreaking research into the extent of religious and socio-economic selection in state-funded English secondary schools, and its effect on social and ethnic inclusion.
The research features iinformation on every mainstream state-funded English secondary school, including how religiously selective their admissions policies are and how representative they are of their local areas in terms of the proportion of pupils eligible for free school meals (a standard measure of socio-economic inclusion) and pupils who speak English as an additional language. The key data is made available in map form, and may be viewed here: http://fairadmissions.org.uk/map/
The detailed briefing can be viewed and downloaded here (*.PDF Adobe Acrobat document, 377kb): http://www.ekklesia.co.uk/files/fair-admissions-campaign-map-briefing.pdf