| Locality | Post Code |
|---|---|
| Bettiscombe | DT6 |
| Bincombe | DT3 |
| Bincombe Down | DT3 5PR |
| Binghams Melcombe | DT2 7PZ |
| Binnegar | BH20 |
| Bishops Caundle | DT9 |
| Bishops Down | DT9 |
| Blackdown | DT8 3LE |
| Blackmanston | BH20 5NZ |
| Blackney | DT6 5PB |
| Blandford Camp | DT11 |
| Blandford Forum | DT11 |
| Blandford Saint Mary | DT11 |
| Bloxworth | BH20 |
| Bockhampton | DT2 8QL |
| Bothenhampton | DT6 |
| Bothenwood | BH21 4HU |
| Bourton | SP8 |
| Bovington | BH20 |
| Bowood | DT6 5JG |
| Boys Hill | DT9 5PJ |
| Bradford Abbas | DT9 |
| Bradford Peverell | DT2 |
| Bradle | BH20 5NU |
| Bradpole | DT6 |
| Bramblecombe | DT2 7QA |