Eaton County, Michigan ZIP codes
12 ZIP codes are in Eaton County, plus 8 that cross in from neighboring counties. It's part of the Lansing-East Lansing, MI metro area.
- ZIP codes
- 12
- Population in these ZIPs
- 117,259
- Avg. median income
- $81,400population-weighted
- Cities & towns
- 11
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Eaton County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 48813 | Charlotte | 20,564 | $80,429 | $240,000 |
| 48821 | Dimondale | 6,327 | $107,440 | $304,500 |
| 48827 | Eaton Rapids | 15,831 | $78,257 | $252,900 |
| 48837 | Grand Ledge | 19,947 | $96,517 | $299,800 |
| 48861 | Mulliken | 1,774 | $89,412 | $234,100 |
| 48876 | Potterville | 4,360 | $74,594 | $228,300 |
| 48890 | Sunfield | 2,055 | $79,444 | $247,200 |
| 48908 PO Box | Lansing | — | — | — |
| 48917 | Lansing | 32,483 | $70,990 | $259,900 |
| 49021 | Bellevue | 6,319 | $82,959 | $249,400 |
| 49076 | Olivet | 4,294 | $74,440 | $234,900 |
| 49096 | Vermontville | 3,305 | $73,929 | $233,700 |
ZIP codes partly in Eaton County
These ZIP codes are mostly in a neighboring county but cover part of Eaton County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 48842 | Holt | Ingham County | 21,945 | $88,340 | $264,600 |
| 48849 | Lake Odessa | Ionia County | 5,723 | $80,313 | $265,800 |
| 48897 | Woodland | Barry County | 1,669 | $69,531 | $270,400 |
| 48906 | Lansing | Clinton County | 25,901 | $64,315 | $166,100 |
| 48911 | Lansing | Ingham County | 39,876 | $56,631 | $171,400 |
| 49073 | Nashville | Barry County | 5,120 | $67,604 | $221,800 |
| 49264 | Onondaga | Ingham County | 1,454 | $92,188 | $258,600 |
| 49284 | Springport | Jackson County | 2,493 | $57,500 | $206,700 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Eaton County
Nearby counties
Frequently asked questions
How many ZIP codes are in Eaton County, Michigan?
12 ZIP codes are mainly in Eaton County, and 8 more ZIP codes from neighboring areas reach partly into it.
What cities are in Eaton County?
ZIP codes in Eaton County use the city names Bellevue, Charlotte, Dimondale, Eaton Rapids, Grand Ledge, Lansing, Mulliken, Olivet, Potterville, Sunfield and Vermontville.
What metro area is Eaton County in?
Eaton County is part of the Lansing-East Lansing, MI metropolitan statistical area.