Eaton County ZIP Codes
Eaton County is a county of Michigan.
- ZIP codes
- 12
- Cities & towns
- 11
- Area codes
- 2
- Land area
- 575 sq mi
Every ZIP code in Eaton County
| ZIP code | City |
|---|---|
| 48813 | Charlotte |
| 48821 | Dimondale |
| 48827 | Eaton Rapids |
| 48837 | Grand Ledge |
| 48861 | Mulliken |
| 48876 | Potterville |
| 48890 | Sunfield |
| 48908 | Lansing |
| 48917 | Lansing |
| 49021 | Bellevue |
| 49076 | Olivet |
| 49096 | Vermontville |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Eaton County codes above are listed without a column we would have to invent.
Cities and towns in Eaton County
Area codes covering Eaton County
Telephone and postal boundaries are drawn by different bodies, so these codes overlap the county without matching its edges.
Where Eaton County's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Scope every ZIP code recorded in Eaton County. Source GeoNames US postal codes (2026-07 postal dump), Census 2024 county Gazetteer (2024 Gazetteer) and geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot). Updated . The outline is a convex envelope of ZIP reference points, not a jurisdiction boundary.