ZIP Code 83123 — La Barge, WY
83123 is a standard (street delivery) ZIP code serving La Barge, 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 83123 at a glance
| ZIP code | 83123 |
|---|---|
| Primary city | La Barge |
| State | Wyoming (WY) |
| County | Lincoln FIPS 56023 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Denver |
| Population | 679 |
| Coordinates | 42.239850, -110.259470 |
How ZIP+4 works in 83123
The four digits after the hyphen encode a delivery segment inside 83123. 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 83123 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 83123.
| ZIP | City | Distance |
|---|---|---|
| 83113 | Big Piney, WY | 21.5 mi |
| 83101 | Kemmerer, WY | 23.5 mi |
| 83121 | Frontier, WY | 30.5 mi |
| 83124 | Opal, WY | 33.9 mi |
| 83116 | Diamondville, WY | 36 mi |
Questions about 83123
What is the ZIP+4 code for 83123?
83123 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 83123, you need to look up a specific street address to get them.
What city is 83123?
83123 is assigned to La Barge, 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.