ZIP Code 83111 — Auburn, WY
83111 is a standard (street delivery) ZIP code serving Auburn, Wyoming, 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 83111 at a glance
| ZIP code | 83111 |
|---|---|
| Primary city | Auburn |
| State | Wyoming (WY) |
| County | Lincoln FIPS 56023 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Denver |
| Population | 284 |
| Coordinates | 42.819000, -111.011430 |
How ZIP+4 works in 83111
The four digits after the hyphen encode a delivery segment inside 83111. 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 83111 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 83111.
| ZIP | City | Distance |
|---|---|---|
| 83122 | Grover, WY | 2.7 mi |
| 83127 | Thayne, WY | 6.9 mi |
| 83112 | Bedford, WY | 7.8 mi |
| 83110 | Afton, WY | 8.6 mi |
| 83119 | Fairview, WY | 12.1 mi |
| 83126 | Smoot, WY | 16.8 mi |
| 83118 | Etna, WY | 17.6 mi |
| 83120 | Freedom, WY | 18.2 mi |
| 83276 | Soda Springs, ID | 22.3 mi |
| 83285 | Wayan, ID | 24.7 mi |
| 83128 | Alpine, WY | 25.3 mi |
| 83239 | Georgetown, ID | 26.7 mi |
Questions about 83111
What is the ZIP+4 code for 83111?
83111 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 83111, you need to look up a specific street address to get them.
What city is 83111?
83111 is assigned to Auburn, Wyoming, 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.