| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Lower Hartwell | HP17 8NR |
| Postal/ZIP Codes in Ludgershall | HP18 |
| Postal/ZIP Codes in Lye Green | HP5 |
| Postal/ZIP Codes in Maids Moreton | MK18 |
| Postal/ZIP Codes in Marlow | SL7 |
| Postal/ZIP Codes in Marsh | HP17 |
| Postal/ZIP Codes in Marsh Gibbon | OX27 |
| Postal/ZIP Codes in Marshgate Trading Estate | SL6 0ND |
| Postal/ZIP Codes in Marsworth | HP23 |
| Postal/ZIP Codes in Meadle | HP17 |
| Postal/ZIP Codes in Medmenham | SL7 |
| Postal/ZIP Codes in Mentmore | LU7 |
| Postal/ZIP Codes in Middle Claydon | MK18 |
| Postal/ZIP Codes in Middlegreen | SL3 6BZ, SL3 6DA |
| Postal/ZIP Codes in Monks Risborough | HP27 |
| Postal/ZIP Codes in Mop End | HP7 |
| Postal/ZIP Codes in Murcott | OX5 |
| Postal/ZIP Codes in Mursley | MK17 |