ZIP Code 54023 — Roberts, WI
54023 is a standard (street delivery) ZIP code serving Roberts, Wisconsin, in St. Croix 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 54023 at a glance
| ZIP code | 54023 |
|---|---|
| Primary city | Roberts |
| State | Wisconsin (WI) |
| County | St. Croix FIPS 55109 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 4,620 |
| Coordinates | 44.977080, -92.552180 |
How ZIP+4 works in 54023
The four digits after the hyphen encode a delivery segment inside 54023. 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 54023 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 54023.
| ZIP | City | Distance |
|---|---|---|
| 54015 | Hammond, WI | 4.8 mi |
| 54016 | Hudson, WI | 6.9 mi |
| 54002 | Baldwin, WI | 8.9 mi |
| 54022 | River Falls, WI | 9.3 mi |
| 54017 | New Richmond, WI | 9.9 mi |
| 55043 | Lakeland, MN | 10.9 mi |
| 55003 | Bayport, MN | 11.3 mi |
| 54082 | Houlton, WI | 11.7 mi |
| 54028 | Woodville, WI | 13.2 mi |
| 54025 | Somerset, WI | 13.2 mi |
| 54003 | Beldenville, WI | 14 mi |
| 55001 | Afton, MN | 14.1 mi |
Questions about 54023
What is the ZIP+4 code for 54023?
54023 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 54023, you need to look up a specific street address to get them.
What city is 54023?
54023 is assigned to Roberts, Wisconsin, in St. Croix 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.