| Locality | Post Code |
|---|---|
| Atchison, Atchison | 66002 |
| Cummings, Atchison | 66016 |
| Effingham, Atchison | 66023 |
| Everest, Atchison | 66424 |
| Horton, Atchison | 66439 |
| Huron, Atchison | 66041 |
| Lancaster, Atchison | 66041 |
| Muscotah, Atchison | 66058 |
| Nortonville, Atchison | 66060 |
| Potter, Atchison | 66002 |