ZIP Code 54485 — Summit Lake, WI
54485 is a standard (street delivery) ZIP code serving Summit Lake, Wisconsin, in Langlade 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 54485 at a glance
| ZIP code | 54485 |
|---|---|
| Primary city | Summit Lake |
| State | Wisconsin (WI) |
| County | Langlade FIPS 55067 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 395 |
| Coordinates | 45.393730, -89.218940 |
How ZIP+4 works in 54485
The four digits after the hyphen encode a delivery segment inside 54485. 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 54485 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 54485.
| ZIP | City | Distance |
|---|---|---|
| 54428 | Elcho, WI | 3.6 mi |
| 54424 | Deerbrook, WI | 7.7 mi |
| 54463 | Pelican Lake, WI | 7.9 mi |
| 54462 | Pearson, WI | 10.6 mi |
| 54435 | Gleason, WI | 11.3 mi |
| 54465 | Pickerel, WI | 16.3 mi |
| 54418 | Bryant, WI | 16.9 mi |
| 54520 | Crandon, WI | 17.4 mi |
| 54409 | Antigo, WI | 19.1 mi |
| 54501 | Rhinelander, WI | 19.3 mi |
| 54442 | Irma, WI | 21.2 mi |
| 54430 | Elton, WI | 23.8 mi |
Questions about 54485
What is the ZIP+4 code for 54485?
54485 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 54485, you need to look up a specific street address to get them.
What city is 54485?
54485 is assigned to Summit Lake, Wisconsin, in Langlade 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.