ZIP codes in Kent County
60 ZIPs touch Kent County, Michigan. The blue dashed line is the county border; orange ZIPs reach into it.
60
ZIP codes
21
cross the county line
761,733
people in these ZIPs
83
counties in MI
Most people
Kent County ZIP list
More counties in Michigan
- Iosco County13
- Iron County9
- Isabella County17
- Jackson County30
- Kalamazoo County31
- Kalkaska County8
- Keweenaw County6
- Lake County11
- Lapeer County22
- Leelanau County11
- Lenawee County23
- Livingston County22
Questions people actually ask
How many ZIP codes are in Kent County, Michigan?
60 ZIP codes reach into Kent County, including 21 PO Box or single-address ZIPs placed by the town they serve. 21 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Kent County has the most people?
49508 (Grand Rapids) has about 42,720 residents, the most of any ZIP touching Kent County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Kent County and another county?
Yes. ZIP codes follow mail routes, not county lines. Rows marked with a percentage show how much of that ZIP’s land is in Kent County. For one address, pin the exact spot on the ZIP finder to see its county.
Where does this list come from?
ZIP areas and their county overlaps come from the Census Bureau’s 2020 ZIP Code Tabulation Area to county relationship file. PO Box ZIPs have no area, so each is placed in the county of the ZIP area nearest the town it serves.
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Updated 2026-11-10 · Where the data comes from