ZIP Code 57457 — Long Lake, SD
57457 is a standard (street delivery) ZIP code serving Long Lake, 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 57457 at a glance
| ZIP code | 57457 |
|---|---|
| Primary city | Long Lake |
| State | South Dakota (SD) |
| County | McPherson FIPS 46089 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 108 |
| Coordinates | 45.872810, -99.158120 |
How ZIP+4 works in 57457
The four digits after the hyphen encode a delivery segment inside 57457. 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 57457 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 57457.
| ZIP | City | Distance |
|---|---|---|
| 57456 | Leola, SD | 13.1 mi |
| 58413 | Ashley, ND | 14 mi |
| 58439 | Forbes, ND | 17.1 mi |
| 57448 | Hosmer, SD | 21.9 mi |
| 57437 | Eureka, SD | 22.9 mi |
| 57481 | Westport, SD | 28 mi |
| 58440 | Fredonia, ND | 28.1 mi |
| 58456 | Kulm, ND | 28.2 mi |
| 58436 | Ellendale, ND | 31 mi |
| 58460 | Lehr, ND | 31.1 mi |
| 57451 | Ipswich, SD | 32.1 mi |
| 57471 | Roscoe, SD | 32.8 mi |
Questions about 57457
What is the ZIP+4 code for 57457?
57457 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 57457, you need to look up a specific street address to get them.
What city is 57457?
57457 is assigned to Long Lake, 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.