ZIP Code 84051 — Mountain Home, UT
84051 is a standard (street delivery) ZIP code serving Mountain Home, Utah, in Duchesne 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 84051 at a glance
| ZIP code | 84051 |
|---|---|
| Primary city | Mountain Home |
| State | Utah (UT) |
| County | Duchesne FIPS 49013 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Denver |
| Population | 377 |
| Coordinates | 40.395520, -110.431310 |
How ZIP+4 works in 84051
The four digits after the hyphen encode a delivery segment inside 84051. 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 84051 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 84051.
| ZIP | City | Distance |
|---|---|---|
| 84073 | Talmage, UT | 3.6 mi |
| 84002 | Altonah, UT | 8.3 mi |
| 84001 | Altamont, UT | 9 mi |
| 84072 | Tabiona, UT | 10.8 mi |
| 84007 | Bluebell, UT | 11.9 mi |
| 84031 | Hanna, UT | 18.1 mi |
| 84021 | Duchesne, UT | 20.2 mi |
| 84066 | Roosevelt, UT | 20.2 mi |
| 84053 | Neola, UT | 23.4 mi |
| 84027 | Fruitland, UT | 25.2 mi |
| 84052 | Myton, UT | 28 mi |
| 84085 | Whiterocks, UT | 29.6 mi |
Questions about 84051
What is the ZIP+4 code for 84051?
84051 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 84051, you need to look up a specific street address to get them.
What city is 84051?
84051 is assigned to Mountain Home, Utah, in Duchesne 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.