ZIP Code 54442 — Irma, WI
54442 is a standard (street delivery) ZIP code serving Irma, Wisconsin, in Lincoln 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 54442 at a glance
| ZIP code | 54442 |
|---|---|
| Primary city | Irma |
| State | Wisconsin (WI) |
| County | Lincoln FIPS 55069 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,527 |
| Coordinates | 45.365320, -89.654390 |
How ZIP+4 works in 54442
The four digits after the hyphen encode a delivery segment inside 54442. 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 54442 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 54442.
| ZIP | City | Distance |
|---|---|---|
| 54435 | Gleason, WI | 10.3 mi |
| 54487 | Tomahawk, WI | 10.7 mi |
| 54452 | Merrill, WI | 12.1 mi |
| 54485 | Summit Lake, WI | 21.2 mi |
| 54529 | Harshaw, WI | 21.6 mi |
| 54564 | Tripoli, WI | 22.9 mi |
| 54463 | Pelican Lake, WI | 23 mi |
| 54424 | Deerbrook, WI | 23.3 mi |
| 54417 | Brokaw, WI | 23.3 mi |
| 54428 | Elcho, WI | 23.8 mi |
| 54470 | Rib Lake, WI | 24 mi |
| 54403 | Wausau, WI | 24 mi |
Questions about 54442
What is the ZIP+4 code for 54442?
54442 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 54442, you need to look up a specific street address to get them.
What city is 54442?
54442 is assigned to Irma, Wisconsin, in Lincoln 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.