Essex Surrey Greater London Cambs
High Weald Surrey Hills Mendip Hills Chilterns
St Albans Stevenage Watford Stevenage Cheshunt Watford Hitchin Letchworth
Hitchin Berkhamstead Hastoe, Tring Wiggington, Tring
Bedfordshire Essex Northants Bucks
2 040 000 754 000 1 040 000 504 000
Dacorum Broxbourne Three Rivers Hertsmere
South East North West South West Midlands
Berks Bucks Essex Cambs. Beds Bucks Berks Beds
Hatfield St Albans Hemel Hempstead Hertford