ZIP Code 49866 — Negaunee, MI
49866 is a standard (street delivery) ZIP code serving Negaunee, Michigan, in Marquette 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 49866 at a glance
| ZIP code | 49866 |
|---|---|
| Primary city | Negaunee |
| State | Michigan (MI) |
| County | Marquette FIPS 26103 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Detroit |
| Population | 8,207 |
| Coordinates | 46.549890, -87.662460 |
How ZIP+4 works in 49866
The four digits after the hyphen encode a delivery segment inside 49866. 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 49866 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 49866.
| ZIP | City | Distance |
|---|---|---|
| 49855 | Marquette, MI | 9.7 mi |
| 49849 | Ishpeming, MI | 10.1 mi |
| 49871 | Palmer, MI | 10.6 mi |
| 49814 | Champion, MI | 13.4 mi |
| 49808 | Big Bay, MI | 20.7 mi |
| 49841 | Gwinn, MI | 20.7 mi |
| 49861 | Michigamme, MI | 23.7 mi |
| 49879 | Republic, MI | 24.6 mi |
| 49833 | Little Lake, MI | 25.9 mi |
| 49885 | Skandia, MI | 26.4 mi |
| 49877 | Ralph, MI | 27.4 mi |
| 49815 | Channing, MI | 28.9 mi |
Questions about 49866
What is the ZIP+4 code for 49866?
49866 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 49866, you need to look up a specific street address to get them.
What city is 49866?
49866 is assigned to Negaunee, Michigan, in Marquette 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.