ZIP Code 49948 — Mass City, MI
49948 is a standard (street delivery) ZIP code serving Mass City, Michigan, in Ontonagon 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 49948 at a glance
| ZIP code | 49948 |
|---|---|
| Primary city | Mass City |
| State | Michigan (MI) |
| County | Ontonagon FIPS 26131 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Detroit |
| Population | 581 |
| Coordinates | 46.745670, -88.999190 |
How ZIP+4 works in 49948
The four digits after the hyphen encode a delivery segment inside 49948. 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 49948 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 49948.
| ZIP | City | Distance |
|---|---|---|
| 49929 | Greenland, MI | 5.8 mi |
| 49952 | Nisula, MI | 11 mi |
| 49960 | Rockland, MI | 12.1 mi |
| 49965 | Toivola, MI | 15.4 mi |
| 49958 | Pelkie, MI | 16 mi |
| 49967 | Trout Creek, MI | 17.5 mi |
| 49912 | Bruce Crossing, MI | 19.8 mi |
| 49908 | Baraga, MI | 20.3 mi |
| 49961 | Sidnaw, MI | 20.4 mi |
| 49953 | Ontonagon, MI | 20.4 mi |
| 49925 | Ewen, MI | 22.3 mi |
| 49955 | Painesdale, MI | 23.2 mi |
Questions about 49948
What is the ZIP+4 code for 49948?
49948 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 49948, you need to look up a specific street address to get them.
What city is 49948?
49948 is assigned to Mass City, Michigan, in Ontonagon 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.