ZIP Code 57541 — Ideal, SD
57541 is a standard (street delivery) ZIP code serving Ideal, South Dakota, in Tripp 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 57541 at a glance
| ZIP code | 57541 |
|---|---|
| Primary city | Ideal |
| State | South Dakota (SD) |
| County | Tripp FIPS 46123 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 163 |
| Coordinates | 43.600010, -99.908950 |
How ZIP+4 works in 57541
The four digits after the hyphen encode a delivery segment inside 57541. 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 57541 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 57541.
| ZIP | City | Distance |
|---|---|---|
| 57584 | Witten, SD | 10.8 mi |
| 57534 | Hamill, SD | 12.6 mi |
| 57544 | Kennebec, SD | 19.9 mi |
| 57568 | Presho, SD | 21.6 mi |
| 57580 | Winner, SD | 22.7 mi |
| 57569 | Reliance, SD | 24.5 mi |
| 57585 | Wood, SD | 24.6 mi |
| 57365 | Oacoma, SD | 28.6 mi |
| 57576 | Vivian, SD | 28.7 mi |
| 57563 | Okreek, SD | 29.6 mi |
| 57528 | Colome, SD | 30.1 mi |
| 57533 | Gregory, SD | 30.2 mi |
Questions about 57541
What is the ZIP+4 code for 57541?
57541 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 57541, you need to look up a specific street address to get them.
What city is 57541?
57541 is assigned to Ideal, South Dakota, in Tripp 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.