ZIP Code 57030 — Garretson, SD
57030 is a standard (street delivery) ZIP code serving Garretson, South Dakota, in Minnehaha 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 57030 at a glance
| ZIP code | 57030 |
|---|---|
| Primary city | Garretson |
| State | South Dakota (SD) |
| County | Minnehaha FIPS 46099 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 2,510 |
| Coordinates | 43.734350, -96.535490 |
How ZIP+4 works in 57030
The four digits after the hyphen encode a delivery segment inside 57030. 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 57030 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 57030.
| ZIP | City | Distance |
|---|---|---|
| 57005 | Brandon, SD | 10.1 mi |
| 56144 | Jasper, MN | 10.4 mi |
| 57003 | Baltic, SD | 11.1 mi |
| 57068 | Valley Springs, SD | 11.2 mi |
| 57055 | Renner, SD | 11.2 mi |
| 56116 | Beaver Creek, MN | 11.2 mi |
| 57065 | Trent, SD | 12 mi |
| 57104 | Sioux Falls, SD | 12.3 mi |
| 57022 | Dell Rapids, SD | 12.7 mi |
| 57110 | Sioux Falls, SD | 14.1 mi |
| 56140 | Ihlen, MN | 14.7 mi |
| 57020 | Crooks, SD | 15 mi |
Questions about 57030
What is the ZIP+4 code for 57030?
57030 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 57030, you need to look up a specific street address to get them.
What city is 57030?
57030 is assigned to Garretson, South Dakota, in Minnehaha 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.