ZIP Code 83301 — Twin Falls, ID
83301 is a standard (street delivery) ZIP code serving Twin Falls, Idaho, in Twin Falls 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 83301 at a glance
| ZIP code | 83301 |
|---|---|
| Primary city | Twin Falls |
| State | Idaho (ID) |
| County | Twin Falls FIPS 16083 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Boise |
| Population | 63,592 |
| Coordinates | 42.394720, -114.522030 |
How ZIP+4 works in 83301
The four digits after the hyphen encode a delivery segment inside 83301. 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 83301 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 83301.
| ZIP | City | Distance |
|---|---|---|
| 83341 | Kimberly, ID | 8.1 mi |
| 83334 | Hansen, ID | 11.9 mi |
| 83328 | Filer, ID | 13 mi |
| 83321 | Castleford, ID | 17.5 mi |
| 83325 | Eden, ID | 19.4 mi |
| 83344 | Murtaugh, ID | 20.6 mi |
| 83338 | Jerome, ID | 23.2 mi |
| 83316 | Buhl, ID | 23.6 mi |
| 83302 | Rogerson, ID | 25.6 mi |
| 83335 | Hazelton, ID | 26.4 mi |
| 83355 | Wendell, ID | 27 mi |
| 83332 | Hagerman, ID | 34.7 mi |
Questions about 83301
What is the ZIP+4 code for 83301?
83301 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 83301, you need to look up a specific street address to get them.
What city is 83301?
83301 is assigned to Twin Falls, Idaho, in Twin Falls 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.