Hertfordshire

Baker's End SG12

Baldock SG7

Barkway SG8

Barley SG8

Barleycroft End SG9

Batchworth WD3

Batchworth Heath WD3

Bayford SG13

Bayfordbury SG13

Bedmond WD5

Bell Bar AL9

Bendish SG4

Bengeo SG14

Benington SG2

Berkhamsted HP4

Bishop's Stortford CM23

Blackmore End AL4

Borehamwood WD6

Bourne End HP1

Bovingdon HP3

Boxmoor HP1

Bragbury End SG2

Bramfield SG14

Braughing SG11

Breachwood Green SG4

Brent Pelham SG9

Bricket Wood AL2

Broadwater SG2

Brookmans Park AL9

Broxbourne EN10

Buckland SG9

Bucks Hill WD4

Bull's Green SG3

Buntingford SG9

Burnham Green AL6

Bury Green SG11

Bushey Heath WD2

Bushey WD1 WD1

Bushey WD23 WD23

Bygrave SG7