Keweenaw County, Michigan ZIP codes
4 ZIP codes are in Keweenaw County, plus 2 that cross in from neighboring counties. It's part of the Houghton, MI micro area.
- ZIP codes
- 4
- Population in these ZIPs
- 1,807
- Avg. median income
- $51,900population-weighted
- Cities & towns
- 4
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Keweenaw County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 49805 | Allouez | 365 | $43,819 | $190,200 |
| 49901 | Ahmeek | 217 | $47,639 | $85,000 |
| 49918 | Copper Harbor | 163 | $67,188 | $284,900 |
| 49950 | Mohawk | 1,062 | $53,250 | $246,900 |
ZIP codes partly in Keweenaw County
These ZIP codes are mostly in a neighboring county but cover part of Keweenaw County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 49913 | Calumet | Houghton County | 7,510 | $53,571 | $147,800 |
| 49945 | Lake Linden | Houghton County | 2,729 | $59,453 | $209,400 |
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 Keweenaw County
Nearby counties
Frequently asked questions
How many ZIP codes are in Keweenaw County, Michigan?
4 ZIP codes are mainly in Keweenaw County, and 2 more ZIP codes from neighboring areas reach partly into it.
What cities are in Keweenaw County?
ZIP codes in Keweenaw County use the city names Ahmeek, Allouez, Copper Harbor and Mohawk.
What metro area is Keweenaw County in?
Keweenaw County is part of the Houghton, MI micropolitan statistical area.