ZIP Code 83281 — Swan Lake, ID
83281 is a standard (street delivery) ZIP code serving Swan Lake, Idaho, in Bannock 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 83281 at a glance
| ZIP code | 83281 |
|---|---|
| Primary city | Swan Lake |
| State | Idaho (ID) |
| County | Bannock FIPS 16005 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Boise |
| Population | 148 |
| Coordinates | 42.310440, -111.959530 |
How ZIP+4 works in 83281
The four digits after the hyphen encode a delivery segment inside 83281. 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 83281 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 83281.
| ZIP | City | Distance |
|---|---|---|
| 83228 | Clifton, ID | 8.9 mi |
| 83234 | Downey, ID | 10.1 mi |
| 83232 | Dayton, ID | 12.2 mi |
| 83263 | Preston, ID | 13.7 mi |
| 83283 | Thatcher, ID | 15.4 mi |
| 83241 | Grace, ID | 17.4 mi |
| 83286 | Weston, ID | 18 mi |
| 83246 | Lava Hot Springs, ID | 20.7 mi |
| 83237 | Franklin, ID | 21.7 mi |
| 83252 | Malad City, ID | 23.2 mi |
| 83214 | Arimo, ID | 23.5 mi |
| 84308 | Cornish, UT | 23.8 mi |
Questions about 83281
What is the ZIP+4 code for 83281?
83281 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 83281, you need to look up a specific street address to get them.
What city is 83281?
83281 is assigned to Swan Lake, Idaho, in Bannock 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.