Eaton County, Michigan Zip Codes
| Lansing | 32,379 |
| Charlotte | 20,165 |
| Grand Ledge | 19,913 |
| Eaton Rapids | 15,999 |
| Bellevue | 6,339 |
| Dimondale | 6,127 |
| Potterville | 4,602 |
| Olivet | 4,112 |
| Vermontville | 2,976 |
| Sunfield | 1,976 |
| Mulliken | 1,839 |
- Population is the most recent figure from the U.S. Census Bureau's 2022 American Community Survey (ACS) 5-Year Estimates.