18 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 48823 | East Lansing | 49,379 |
| 48911 | Lansing | 40,407 |
| 48910 | Lansing | 32,801 |
| 48864 | Okemos | 23,548 |
| 48842 | Holt | 21,504 |
| 48854 | Mason | 19,403 |
| 48912 | Lansing | 17,398 |
| 48840 | Haslett | 12,653 |
| 48895 | Williamston | 11,294 |
| 48825 | East Lansing | 11,127 |
| 48915 | Lansing | 9,315 |
| 49285 | Stockbridge | 6,120 |
| 49251 | Leslie | 6,110 |
| 48892 | Webberville | 4,769 |
| 48933 | Lansing | 3,349 |
| 48819 | Dansville | 2,447 |
| 48824 | East Lansing | 2,061 |
| 49264 | Onondaga | 1,571 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 18 ZCTAs in Ingham County, Michigan (US Census).