Caernarvon Boroughs Borough within Caernarvonshire
 
Caernarvonshire County
 
Calais Borough within France and the Channel Islands
 
Calne Borough within Wiltshire
 
Cambridge Borough within Cambridgeshire
 
Cambridgeshire County
 
Camelford Borough within Cornwall
 
Canterbury Borough within Kent
 
Cardiff Boroughs Borough within Glamorgan
 
Cardigan Boroughs Borough within Cardiganshire
 
Cardiganshire County
 
Carlisle Borough within Cumberland
 
Carmarthen Boroughs County
 
Carmarthenshire County
 
Castle Rising Borough within Norfolk
 
Cheshire County
 
Chester Borough within Cheshire
 
Chichester Borough within Sussex
 
Chippenham Borough within Wiltshire
 
Chipping Wycombe Borough within Buckinghamshire
 
Cinque Ports County
 
Cirencester Borough within Gloucestershire
 
Colchester Borough within Essex
 
Cornwall County
 
Coventry Borough within Warwickshire