| Postal Service | Rock Rapids |
| Division | Lyon |
| Post code | 51246 |
| Postal Service | Inwood |
| Division | Lyon |
| Post code | 51240 |
| Postal Service | Larchwood |
| Division | Lyon |
| Post code | 51241 |
| Postal Service | George |
| Division | Lyon |
| Post code | 51237 |
| Postal Service | Doon |
| Division | Lyon |
| Post code | 51235 |
| Postal Service | Little Rock |
| Division | Lyon |
| Post code | 51243 |
| Postal Service | Alvord |
| Division | Lyon |
| Post code | 51230 |
| Postal Service | Lester |
| Division | Lyon |
| Post code | 51242 |
8 City in Lyon | List of Zip Codes Location In Iowa and Your selected County Lyon