Castlethorpe First School is a primary school based in milton keynes under the Milton Keynes local authority.

Castlethorpe First School caters for mixed pupils from 4 to 7 years. With 35 pupils enrolled and a capacity of 45, the school provides a structured and balanced curriculum aligned with national expectations.

Ofsted last inspected the school on 13 May 2025, awarding it a Outstanding rating. The report noted positive aspects of leadership, safeguarding and the school’s approach to pupil development.