Wales is subject to the administration of both the UK Government in Westminster and also the National Assembly for Wales in Cardiff.
The UK Government retains responsibility for non-devolved topics, but the National Assembly has powers to make legislation in devolved topics such as health, education, agriculture, local government, environment, and culture.
Wales is subdivided into 22 unitary authorities, which in turn are divided into electoral divisions and communities.
Unitary Authority
Information on the upper level of Administrative geography in Wales
Electoral Divisions
Electoral Divisions are a key building block of Welsh administrative geography
Communities
Communities are the smallest administrative areas in Wales