ZIP Code 57058 — Salem, SD
57058 is a standard (street delivery) ZIP code serving Salem, South Dakota, in McCook 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 57058 at a glance
| ZIP code | 57058 |
|---|---|
| Primary city | Salem |
| State | South Dakota (SD) |
| County | McCook FIPS 46087 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,881 |
| Coordinates | 43.746020, -97.404680 |
How ZIP+4 works in 57058
The four digits after the hyphen encode a delivery segment inside 57058. 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 57058 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 57058.
| ZIP | City | Distance |
|---|---|---|
| 57374 | Spencer, SD | 9.9 mi |
| 57048 | Montrose, SD | 10.2 mi |
| 57321 | Canova, SD | 11.3 mi |
| 57012 | Canistota, SD | 12 mi |
| 57319 | Bridgewater, SD | 14.8 mi |
| 57076 | Winfred, SD | 16.1 mi |
| 57035 | Humboldt, SD | 17.8 mi |
| 57332 | Emery, SD | 18.3 mi |
| 57047 | Monroe, SD | 18.4 mi |
| 57311 | Alexandria, SD | 19.1 mi |
| 57042 | Madison, SD | 20.4 mi |
| 57349 | Howard, SD | 21.2 mi |
Questions about 57058
What is the ZIP+4 code for 57058?
57058 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 57058, you need to look up a specific street address to get them.
What city is 57058?
57058 is assigned to Salem, South Dakota, in McCook 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.