18 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 48823 | East Lansing | 50,034 |
| 48911 | Lansing | 39,876 |
| 48910 | Lansing | 32,800 |
| 48864 | Okemos | 23,901 |
| 48842 | Holt | 21,945 |
| 48854 | Mason | 19,529 |
| 48912 | Lansing | 17,674 |
| 48840 | Haslett | 12,386 |
| 48825 | East Lansing | 11,295 |
| 48895 | Williamston | 11,116 |
| 48915 | Lansing | 9,428 |
| 49285 | Stockbridge | 6,240 |
| 49251 | Leslie | 5,958 |
| 48892 | Webberville | 4,715 |
| 48933 | Lansing | 3,107 |
| 48819 | Dansville | 2,550 |
| 48824 | East Lansing | 2,097 |
| 49264 | Onondaga | 1,454 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 18 ZCTAs in Ingham County, Michigan (US Census).