ZIP Code 57456 — Leola, SD
57456 is a standard (street delivery) ZIP code serving Leola, South Dakota, in McPherson 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 57456 at a glance
| ZIP code | 57456 |
|---|---|
| Primary city | Leola |
| State | South Dakota (SD) |
| County | McPherson FIPS 46089 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 670 |
| Coordinates | 45.721040, -98.995890 |
How ZIP+4 works in 57456
The four digits after the hyphen encode a delivery segment inside 57456. 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 57456 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 57456.
| ZIP | City | Distance |
|---|---|---|
| 57457 | Long Lake, SD | 13.1 mi |
| 57481 | Westport, SD | 16.5 mi |
| 58439 | Forbes, ND | 18.8 mi |
| 57451 | Ipswich, SD | 20 mi |
| 57448 | Hosmer, SD | 21.7 mi |
| 57426 | Barnard, SD | 24.2 mi |
| 57441 | Frederick, SD | 24.2 mi |
| 57471 | Roscoe, SD | 26.4 mi |
| 58413 | Ashley, ND | 27.1 mi |
| 57401 | Aberdeen, SD | 28.1 mi |
| 58436 | Ellendale, ND | 31.7 mi |
| 57460 | Mansfield, SD | 34.7 mi |
Questions about 57456
What is the ZIP+4 code for 57456?
57456 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 57456, you need to look up a specific street address to get them.
What city is 57456?
57456 is assigned to Leola, South Dakota, in McPherson 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.