St Albans
| Markyate
| Potters Bar
| Slip End
| Hertford
| Buntingford
|
London Colney
| Wheathampstead
| Waltham Cross
| Luton
| Henlow
| Watford
|
Welwyn Garden City
| Harpenden
| Waltham Abbey
| Dunstable
| Knebworth
| Bushey
|
Hatfield
| Codicote
| Rickmansworth
| Toddington
| Whitwell
| Abbots Langley
|
Park Street
| Potters Bar
| Tring
| Whipsnade
| Hitchin
| Kings Langley
|
Radlett
| Enfield
| Hemel Hempstead
| Leighton Buzzard
| Hexton
| Borehamwood
|
Redbourn
| Broxbourne
| Berkhamsted
| Barton-le-Cley
| Letchworth Garden City
| Welwyn
|
Sandridge
| Hoddesdon
| Chesham
| Stevenage
| Baldock
| Lemsford
|
Flamstead
| Barnet
| Caddington
| Ware
| Royston
| Tewin
|
