The eleventh series of the British television drama series Grange Hill began broadcasting on 5 January 1988, before ending on 11 March 1988 on BBC One. The series follows the lives of the staff and pupils of the eponymous school, an inner-city London comprehensive school. It consists of twenty episodes.
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As of 2022, the eleventh series of Grange Hill has not been released on DVD.
In July 2022, the eleventh series was added to the streaming platform BritBox.