ZIP Code 82721 — Moorcroft, WY
82721 is a standard (street delivery) ZIP code serving Moorcroft, 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 82721 at a glance
| ZIP code | 82721 |
|---|---|
| Primary city | Moorcroft |
| State | Wyoming (WY) |
| County | Crook FIPS 56011 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Denver |
| Population | 2,955 |
| Coordinates | 44.461990, -104.898080 |
How ZIP+4 works in 82721
The four digits after the hyphen encode a delivery segment inside 82721. 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 82721 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 82721.
| ZIP | City | Distance |
|---|---|---|
| 82714 | Devils Tower, WY | 12.4 mi |
| 82727 | Rozet, WY | 17 mi |
| 82720 | Hulett, WY | 25.4 mi |
| 82729 | Sundance, WY | 26 mi |
| 82711 | Alva, WY | 26.8 mi |
| 82731 | Weston, WY | 28.9 mi |
| 82730 | Upton, WY | 30.5 mi |
| 82723 | Osage, WY | 40.1 mi |
Questions about 82721
What is the ZIP+4 code for 82721?
82721 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 82721, you need to look up a specific street address to get them.
What city is 82721?
82721 is assigned to Moorcroft, 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.