Sorry -- I got it wrong. That "~30k" includes undergraduates and postgraduate students; it should also have been "~24k". The actual numbers are Undergraduates:

Sorry -- I got it wrong. That "~30k" includes undergraduates and postgraduate students; it should also have been "~24k". The actual numbers are Undergraduates: 12k; Postgraduates: ~12k. Also, bear in mind that it is a very international university: International students make up 43% of Oxford students; 64% of all graduate students are from outside the UK, as are 20% of all undergraduates. So, think of the pool as being a lot larger.