ZIP Code 83616 — Eagle, ID
83616 is a standard (street delivery) ZIP code serving Eagle, Idaho, in Ada 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 83616 at a glance
| ZIP code | 83616 |
|---|---|
| Primary city | Eagle |
| State | Idaho (ID) |
| County | Ada FIPS 16001 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Boise |
| Population | 35,413 |
| Coordinates | 43.776670, -116.389770 |
How ZIP+4 works in 83616
The four digits after the hyphen encode a delivery segment inside 83616. 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 83616 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 83616.
| ZIP | City | Distance |
|---|---|---|
| 83669 | Star, ID | 6.8 mi |
| 83714 | Garden City, ID | 7 mi |
| 83646 | Meridian, ID | 9 mi |
| 83713 | Boise, ID | 9.9 mi |
| 83644 | Middleton, ID | 9.9 mi |
| 83703 | Boise, ID | 10.9 mi |
| 83704 | Boise, ID | 11.5 mi |
| 83617 | Emmett, ID | 12.2 mi |
| 83687 | Nampa, ID | 13.5 mi |
| 83702 | Boise, ID | 13.5 mi |
| 83642 | Meridian, ID | 14 mi |
| 83629 | Horseshoe Bend, ID | 14.4 mi |
Questions about 83616
What is the ZIP+4 code for 83616?
83616 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 83616, you need to look up a specific street address to get them.
What city is 83616?
83616 is assigned to Eagle, Idaho, in Ada 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.