Here is a fairly complete list of his patronages from Wikipedia, Patronages of Saint George
His Feast Day is the only Feast of a National Patron of the United Kingdom that gets ignored. St Andrew (30 November, Scotland), St Patrick (17 March, Northern Ireland), and St David (1 March, Wales) are all either public holidays or are honoured very publicly. In the case of St George, it is considered 'racist' to honour him, because it might imply that one is actually proud of being English!
And here is a short video about him.