Cranbrook School is a voluntary aided non-denominational boarding and day co-educational grammar school catering for pupils in the top 25% of the ability range aged from 13 to 18. Boarding is offered on a flexible or termly basis.Today, Cranbrook School is well known in the South East, with its population of some 720 pupils aged between 13 and 18 (Years 9 to 13 in the National Curriculum). It is fully co-educational (400 boys, 320 girls) and has 240 boarding places for boys and girls