| Location | States or Territories | Abbreviation | Postcode |
|---|---|---|---|
| Bradford | Victoria | VIC | 3463 |
| Bradvale | Victoria | VIC | 3361 |
| Braeside | Victoria | VIC | 3195 |
| Branditt | Victoria | VIC | 3630 |
| Brandon Park, PO Boxes | Victoria | VIC | 3150 |
| Brandy Creek | Victoria | VIC | 3821 |
| Branxholme | Victoria | VIC | 3302 |
| Bravington | Victoria | VIC | 3821 |
| Braybrook | Victoria | VIC | 3019 |
| Breakaway Creek | Victoria | VIC | 3303 |
| Breakwater | Victoria | VIC | 3219 |
| Breamlea | Victoria | VIC | 3227 |
| Brenanah | Victoria | VIC | 3517 |
| Brentford Square | Victoria | VIC | 3131 |
| Brewster | Victoria | VIC | 3352 |
| Briagolong | Victoria | VIC | 3860 |
| Briar Hill | Victoria | VIC | 3088 |
| Bridge Creek | Victoria | VIC | 3723 |
| Bridgewater | Victoria | VIC | 3516 |
| Bridgewater North | Victoria | VIC | 3516 |
