Oxford is a collegiate university, consisting of the central University and colleges. The central University is composed of academic departments and research centres, administrative departments, libraries and museums. The 38 colleges are self-governing and financially independent institutions, which are related to the central University in a federal system. There are also six permanent private halls, which were founded by different Christian denominations and which still retain their Christian character.
The university is made up of a variety of institutions, including 38 constituent colleges and a full range of academic departments which are organised into four divisions. All the colleges are self-governing institutions as part of the university, each controlling its own membership and with its own internal structure and activities.Being a city university, it does not have a main campus; instead, all the buildings and facilities are scattered throughout the metropolitan centre.