| Locality | Post Code |
|---|---|
| Atlas, Genesee | 48411 |
| Burton, Genesee | 48509, 48519, 48529 |
| Byron, Genesee | 48418 |
| Clio, Genesee | 48420 |
| Davison, Genesee | 48423 |
| Fenton, Genesee | 48430 |
| Flint, Genesee | 48502, 48503, 48504, 48505, 48506, … |
| Flushing, Genesee | 48433 |
| Gaines, Genesee | 48436 |
| Genesee, Genesee | 48437 |
| Goodrich, Genesee | 48438 |
| Grand Blanc, Genesee | 48439, 48507 |
| Lennon, Genesee | 48449 |
| Linden, Genesee | 48451 |
| Montrose, Genesee | 48457 |
| Mott Park, Genesee | 48504 |
| Mount Morris, Genesee | 48458 |
| Northeast, Genesee | 48509 |
| Northwest, Genesee | 48504 |
| Otisville, Genesee | 48463 |
| Otter Lake, Genesee | 48464 |
| Rankin, Genesee | 48473 |
| Southeast, Genesee | 48519 |
| Swartz Creek, Genesee | 48473 |