ZIP Code 82711 — Alva, WY
82711 is a standard (street delivery) ZIP code serving Alva, Wyoming, in Crook 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 82711 at a glance
| ZIP code | 82711 |
|---|---|
| Primary city | Alva |
| State | Wyoming (WY) |
| County | Crook FIPS 56011 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Denver |
| Population | 254 |
| Coordinates | 44.711570, -104.480620 |
How ZIP+4 works in 82711
The four digits after the hyphen encode a delivery segment inside 82711. 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 82711 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 82711.
| ZIP | City | Distance |
|---|---|---|
| 82710 | Aladdin, WY | 9.6 mi |
| 82720 | Hulett, WY | 11 mi |
| 82714 | Devils Tower, WY | 14.7 mi |
| 82712 | Beulah, WY | 21.7 mi |
| 82729 | Sundance, WY | 24.4 mi |
| 82721 | Moorcroft, WY | 26.8 mi |
| 59311 | Alzada, MT | 31.7 mi |
| 57783 | Spearfish, SD | 32 mi |
| 57717 | Belle Fourche, SD | 32.5 mi |
Questions about 82711
What is the ZIP+4 code for 82711?
82711 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 82711, you need to look up a specific street address to get them.
What city is 82711?
82711 is assigned to Alva, Wyoming, in Crook 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.