ZIP codes in Marquette County
17 ZIPs touch Marquette County, Michigan. The blue dashed line is the county border; orange ZIPs reach into it.
17
ZIP codes
7
cross the county line
70,089
people in these ZIPs
83
counties in MI
Most people
Marquette County ZIP list
More counties in Michigan
- Lenawee County23
- Livingston County22
- Luce County3
- Mackinac County15
- Macomb County44
- Manistee County15
- Mason County10
- Mecosta County17
- Menominee County15
- Midland County20
- Missaukee County9
- Monroe County26
Questions people actually ask
How many ZIP codes are in Marquette County, Michigan?
17 ZIP codes reach into Marquette County, including 2 PO Box or single-address ZIPs placed by the town they serve. 7 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Marquette County has the most people?
49855 (Marquette) has about 33,876 residents, the most of any ZIP touching Marquette County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Marquette 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 Marquette 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