| Locality | Post Code |
|---|---|
| Arcola, Allen | 46704 |
| Boston Corner, Allen | 46773 |
| Cedar Canyon, Allen | 46765 |
| Cedar Shores, Allen | 46765 |
| Cedarville, Allen | 46765 |
| Diplomat, Allen | 46816 |
| Diplomat Plaza, Allen | 46806 |
| Dixon, Allen | 46773 |
| Edgerton, Allen | 46797 |
| Fort Wayne, Allen | 46802, 46803, 46804, 46805, 46806, … |
| Gar Creek, Allen | 46774 |
| Grabill, Allen | 46741 |
| Harlan, Allen | 46743 |
| Hazelwood, Allen | 46845 |
| Hoagland, Allen | 46745 |
| Huntertown, Allen | 46748 |
| Hurshtown, Allen | 46788 |
| Leo, Allen | 46765 |
| Leo-Cedarville, Allen | 46765 |
| Maples, Allen | 46816 |
| Maumee, Allen | 46797 |
| Meadowbrook, Allen | 46774 |
| Milan, Allen | 46774 |
| Monroeville, Allen | 46773 |
| New Haven, Allen | 46774 |
| New Haven Heights, Allen | 46774 |