ZIP Code 57772 — Porcupine, SD
57772 is a standard (street delivery) ZIP code serving Porcupine, South Dakota, in Oglala Lakota 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 57772 at a glance
| ZIP code | 57772 |
|---|---|
| Primary city | Porcupine |
| State | South Dakota (SD) |
| County | Oglala Lakota FIPS 46102 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Denver |
| Population | 2,493 |
| Coordinates | 43.481820, -102.519030 |
How ZIP+4 works in 57772
The four digits after the hyphen encode a delivery segment inside 57772. 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 57772 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 57772.
| ZIP | City | Distance |
|---|---|---|
| 57752 | Kyle, SD | 15.9 mi |
| 57756 | Manderson, SD | 17 mi |
| 57764 | Oglala, SD | 20.6 mi |
| 57780 | Scenic, SD | 20.6 mi |
| 57722 | Buffalo Gap, SD | 23.2 mi |
| 57794 | Wounded Knee, SD | 25.5 mi |
| 57770 | Pine Ridge, SD | 28.5 mi |
| 57750 | Interior, SD | 29.7 mi |
| 57716 | Batesland, SD | 31.7 mi |
| 57744 | Hermosa, SD | 32.5 mi |
| 57725 | Caputa, SD | 34.5 mi |
Questions about 57772
What is the ZIP+4 code for 57772?
57772 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 57772, you need to look up a specific street address to get them.
What city is 57772?
57772 is assigned to Porcupine, South Dakota, in Oglala Lakota 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.