GREAT ASHBY
HEXTON
HINXWORTH
HITCHIN
Locality of -40 000 inhabitants
HOLWELL
ICKLEFORD
KELSHALL
KIMPTON
KING'S WALDEN
KNEBWORTH
LANGLEY
LILLEY
NEWNHAM
NUTHAMPSTEAD
OFFLEY
PIRTON
PRESTON
RADWELL
REED
ROYSTON
Locality of -20 000 inhabitants
RUSHDEN
SANDON
ST IPPOLYTS
ST PAUL'S WALDEN
THERFIELD
WALLINGTON
WESTON
WYMONDLEY
COLNEY HEATH
HARPENDEN RURAL