ZIP Code 83830 — Fernwood, ID
83830 is a standard (street delivery) ZIP code serving Fernwood, Idaho, in Benewah 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 83830 at a glance
| ZIP code | 83830 |
|---|---|
| Primary city | Fernwood |
| State | Idaho (ID) |
| County | Benewah FIPS 16009 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Los_Angeles |
| Population | 45 |
| Coordinates | 47.076510, -116.352720 |
How ZIP+4 works in 83830
The four digits after the hyphen encode a delivery segment inside 83830. 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 83830 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 83830.
| ZIP | City | Distance |
|---|---|---|
| 83812 | Clarkia, ID | 6 mi |
| 83866 | Santa, ID | 6.1 mi |
| 83806 | Bovill, ID | 13.4 mi |
| 83861 | Saint Maries, ID | 15.9 mi |
| 83834 | Harvard, ID | 16.7 mi |
| 83823 | Deary, ID | 20.3 mi |
| 83808 | Calder, ID | 20.8 mi |
| 83827 | Elk River, ID | 22.1 mi |
| 83870 | Tensed, ID | 23.9 mi |
| 83857 | Princeton, ID | 24.6 mi |
| 83850 | Pinehurst, ID | 26.1 mi |
| 83842 | Medimont, ID | 26.8 mi |
Questions about 83830
What is the ZIP+4 code for 83830?
83830 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 83830, you need to look up a specific street address to get them.
What city is 83830?
83830 is assigned to Fernwood, Idaho, in Benewah 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.