ZIP Code 57737 — Enning, SD
57737 is a standard (street delivery) ZIP code serving Enning, South Dakota, in Meade 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 57737 at a glance
| ZIP code | 57737 |
|---|---|
| Primary city | Enning |
| State | South Dakota (SD) |
| County | Meade FIPS 46093 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Denver |
| Population | 77 |
| Coordinates | 44.556180, -102.520960 |
How ZIP+4 works in 57737
The four digits after the hyphen encode a delivery segment inside 57737. 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 57737 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 57737.
| ZIP | City | Distance |
|---|---|---|
| 57792 | White Owl, SD | 8.2 mi |
| 57787 | Union Center, SD | 10.2 mi |
| 57791 | Wasta, SD | 21.7 mi |
| 57748 | Howes, SD | 25.2 mi |
| 57761 | New Underwood, SD | 26.1 mi |
| 57767 | Owanka, SD | 28.9 mi |
| 57719 | Box Elder, SD | 32 mi |
| 57758 | Mud Butte, SD | 32 mi |
| 57790 | Wall, SD | 34.8 mi |
| 57626 | Faith, SD | 34.8 mi |
| 57706 | Ellsworth Afb, SD | 39.5 mi |
| 57775 | Quinn, SD | 41.3 mi |
Questions about 57737
What is the ZIP+4 code for 57737?
57737 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 57737, you need to look up a specific street address to get them.
What city is 57737?
57737 is assigned to Enning, South Dakota, in Meade 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.