ZIP Code 57048 — Montrose, SD
57048 is a standard (street delivery) ZIP code serving Montrose, 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 57048 at a glance
| ZIP code | 57048 |
|---|---|
| Primary city | Montrose |
| State | South Dakota (SD) |
| County | McCook FIPS 46087 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,237 |
| Coordinates | 43.740810, -97.200340 |
How ZIP+4 works in 57048
The four digits after the hyphen encode a delivery segment inside 57048. 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 57048 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 57048.
| ZIP | City | Distance |
|---|---|---|
| 57035 | Humboldt, SD | 9 mi |
| 57058 | Salem, SD | 10.2 mi |
| 57012 | Canistota, SD | 10.7 mi |
| 57018 | Colton, SD | 11.8 mi |
| 57033 | Hartford, SD | 14.7 mi |
| 57047 | Monroe, SD | 15.4 mi |
| 57016 | Chester, SD | 15.7 mi |
| 57041 | Lyons, SD | 15.8 mi |
| 57042 | Madison, SD | 16.5 mi |
| 57076 | Winfred, SD | 18 mi |
| 57020 | Crooks, SD | 19.1 mi |
| 57321 | Canova, SD | 19.6 mi |
Questions about 57048
What is the ZIP+4 code for 57048?
57048 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 57048, you need to look up a specific street address to get them.
What city is 57048?
57048 is assigned to Montrose, 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.