ZIP Code 49918 — Copper Harbor, MI
49918 is a standard (street delivery) ZIP code serving Copper Harbor, Michigan, in Keweenaw County. To mail something here you only need these five digits — but the four-digit extension narrows delivery to a single point, and it is what USPS bulk postage discounts are priced on.
ZIP code 49918 at a glance
| ZIP code | 49918 |
|---|---|
| Primary city | Copper Harbor |
| State | Michigan (MI) |
| County | Keweenaw FIPS 26083 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Detroit |
| Population | 163 |
| Coordinates | 47.435850, -87.812380 |
How ZIP+4 works in 49918
The four digits after the hyphen encode a delivery segment inside 49918. In practice one segment usually means:
- One side of one block — odd numbers on a street between two cross streets
- A single large building, or one floor of it
- A group of PO boxes, sometimes a single box
- A single business that receives enough mail to warrant its own code
That is why 49918 has no single ZIP+4: two neighbors across the street from each other usually have different ones. Enter a street address above and we will return the exact nine-digit code along with the standardized USPS address format.
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 49918.
| ZIP | City | Distance |
|---|---|---|
| 49950 | Mohawk, MI | 14.9 mi |
| 49805 | Allouez, MI | 27.4 mi |
| 49917 | Copper City, MI | 27.7 mi |
| 49901 | Ahmeek, MI | 28.7 mi |
| 49945 | Lake Linden, MI | 29.5 mi |
Questions about 49918
What is the ZIP+4 code for 49918?
49918 is the five-digit ZIP code. The ZIP+4 adds four more digits that identify a specific delivery point — usually one side of a city block, a single building, or a group of PO boxes. Because those four digits change from address to address within 49918, you need to look up a specific street address to get them.
What city is 49918?
49918 is assigned to Copper Harbor, Michigan, in Keweenaw County.
Do I need to use the ZIP+4?
It is optional for ordinary mail, but it speeds up sorting and it is required for most USPS bulk-mail postage discounts. Many address-verification and e-commerce systems also use ZIP+4 to confirm a delivery point exists.
Need thousands of these?
Upload a CSV and get ZIP+4, county, carrier route, and delivery-point data appended to every row — or call the API directly.