| Locality | Post Code |
|---|---|
| Albion, Jackson | 49224 |
| Brooklyn, Jackson | 49230 |
| Cement City, Jackson | 49233 |
| Clarklake, Jackson | 49234 |
| Concord, Jackson | 49237 |
| Duck Lake, Jackson | 49284 |
| Grass Lake, Jackson | 49240 |
| Hanover, Jackson | 49241 |
| Horton, Jackson | 49246 |
| Jackson, Jackson | 49201, 49202, 49203 |
| Jerome, Jackson | 49249 |
| Michigan Center, Jackson | 49254 |
| Munith, Jackson | 49259 |
| Napoleon, Jackson | 49261 |
| Norvell, Jackson | 49263 |
| Onondaga, Jackson | 49264 |
| Parma, Jackson | 49269 |
| Pleasant Lake, Jackson | 49272 |
| Rives Junction, Jackson | 49277 |
| Spring Arbor, Jackson | 49283 |
| Springport, Jackson | 49284 |
| Stockbridge, Jackson | 49285 |