| Locality | Post Code |
|---|---|
| Andrew, Jackson | 52030 |
| Baldwin, Jackson | 52207 |
| Bellevue, Jackson | 52031 |
| Bernard, Jackson | 52032 |
| Canton, Jackson | 52309 |
| Emeline, Jackson | 52207 |
| Fulton, Jackson | 52060 |
| Green Island, Jackson | 52064 |
| Hurstville, Jackson | 52060 |
| Ironhills, Jackson | 52060 |
| La Motte, Jackson | 52054 |
| Maquoketa, Jackson | 52060 |
| Miles, Jackson | 52064 |
| Monmouth, Jackson | 52309 |
| Nashville, Jackson | 52060 |
| Preston, Jackson | 52069 |
| Sabula, Jackson | 52070 |
| Saint Donatus, Jackson | 52071 |
| Spragueville, Jackson | 52074 |
| Springbrook, Jackson | 52075 |
| Zwingle, Jackson | 52079 |