Each county borough was technically an administrative county of a single district, whilst a number of counties were divided into more than one administrative county; they were Cambridgeshire, Hampshire, Lincolnshire, Northamptonshire, Suffolk, Sussex and Yorkshire.
Teknisk var hver county borough i sig selv et administrativt county, mens en række counties blev opdelt i mere end et administrativt county; det var Cambridgeshire, Hampshire, Lincolnshire, Northamptonshire, Suffolk, Sussex og Yorkshire.