Founded to provide choirboys for the Choir of St George's Chapel, it now educates over 400 boys and girls.

The school was established to provide six choristers for the Choir of St George's Chapel, Windsor Castle, which sings in St George's Chapel at Windsor Castle, which is the official country residence of the British Royal Family.

Nearly all pupils over the age of 7 learn an instrument, the majority of girls take part in ballet, tap or jazz dancing and a range of school choirs covers all age-groups.

In 2021, the house names were changed from Revenge, Rodney, Vindictive and Victory, to Garter, Clarence, Lancaster and Winchester.

At the beginning of the 2024/25 school year, St George's will welcome their first ever female head teacher, Emma Károlyi.