Office for National Statistics A series of tables providing detailed information down to the most local geographic level - the Output Area. The full set is composed of CAS tables, CAS Theme Tables with information on a particular population such as dependent children or pensioner households, and Univariate tables which provide a more detailed breakdown for a single topic.
They are available for a range of geographies - England and Wales, Government Office Regions, local authority districts, unitary authorities, counties, wards, parishes, Output Areas, health areas, Parliamentary Constituencies, postal areas, and urban areas.