ZIP Code 57226 — Clear Lake, SD
57226 is a standard (street delivery) ZIP code serving Clear Lake, South Dakota, in Deuel 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 57226 at a glance
| ZIP code | 57226 |
|---|---|
| Primary city | Clear Lake |
| State | South Dakota (SD) |
| County | Deuel FIPS 46039 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,953 |
| Coordinates | 44.785650, -96.723680 |
How ZIP+4 works in 57226
The four digits after the hyphen encode a delivery segment inside 57226. 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 57226 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 57226.
| ZIP | City | Distance |
|---|---|---|
| 57238 | Goodwin, SD | 9.1 mi |
| 57237 | Gary, SD | 10 mi |
| 57218 | Brandt, SD | 10.8 mi |
| 57245 | Kranzburg, SD | 12.1 mi |
| 57265 | Strandburg, SD | 14.4 mi |
| 57223 | Castlewood, SD | 14.8 mi |
| 57268 | Toronto, SD | 15.1 mi |
| 57234 | Estelline, SD | 15.6 mi |
| 57259 | Revillo, SD | 16.7 mi |
| 57213 | Astoria, SD | 17.5 mi |
| 57246 | Labolt, SD | 18.9 mi |
| 56257 | Marietta, MN | 20.1 mi |
Questions about 57226
What is the ZIP+4 code for 57226?
57226 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 57226, you need to look up a specific street address to get them.
What city is 57226?
57226 is assigned to Clear Lake, South Dakota, in Deuel 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.