ZIP Code 57034 — Hudson, SD
57034 is a standard (street delivery) ZIP code serving Hudson, South Dakota, in Lincoln 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 57034 at a glance
| ZIP code | 57034 |
|---|---|
| Primary city | Hudson |
| State | South Dakota (SD) |
| County | Lincoln FIPS 46083 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 661 |
| Coordinates | 43.124930, -96.545750 |
How ZIP+4 works in 57034
The four digits after the hyphen encode a delivery segment inside 57034. 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 57034 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 57034.
| ZIP | City | Distance |
|---|---|---|
| 57027 | Fairview, SD | 5.1 mi |
| 51023 | Hawarden, IA | 8.9 mi |
| 57001 | Alcester, SD | 10.3 mi |
| 51247 | Rock Valley, IA | 11.5 mi |
| 57013 | Canton, SD | 11.8 mi |
| 57004 | Beresford, SD | 12.9 mi |
| 51240 | Inwood, IA | 13.5 mi |
| 51011 | Chatsworth, IA | 14.5 mi |
| 51027 | Ireton, IA | 15.5 mi |
| 57077 | Worthing, SD | 16.9 mi |
| 51250 | Sioux Center, IA | 17 mi |
| 51230 | Alvord, IA | 19.5 mi |
Questions about 57034
What is the ZIP+4 code for 57034?
57034 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 57034, you need to look up a specific street address to get them.
What city is 57034?
57034 is assigned to Hudson, South Dakota, in Lincoln 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.