| Locality | Post Code |
|---|---|
| Addington | MK18 |
| Adstock | MK18 |
| Akeley | MK18 |
| Akeley Wood | MK18 |
| Amersham | HP6, HP7 |
| Ashendon | HP18 |
| Asheridge | HP5 |
| Ashley Green | HP5 |
| Askett | HP27 |
| Aston Abbotts | HP22 |
| Aston Clinton | HP22 |
| Aston Sandford | HP17 |
| Aylesbury | HP18, HP19, HP20, HP21 |
| Ballinger | HP16 |
| Barton Hartshorn | MK18 |
| Beachampton | MK19 |
| Beacons Bottom | HP14 3XE, HP14 3XF, HP14 … |
| Beaconsfield | HP9 |
| Beamond End | HP7 |
| Bellingdon | HP5 |
| Biddlesden | NN13 |
| Bierton | HP22 |
| Bishopstone | HP17 |
| Bledlow | HP27 |
| Bledlow Ridge | HP14 |
| Boarstall | HP18 |