ZIP Code 84542 — Wellington, UT
84542 is a standard (street delivery) ZIP code serving Wellington, Utah, in Carbon 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 84542 at a glance
| ZIP code | 84542 |
|---|---|
| Primary city | Wellington |
| State | Utah (UT) |
| County | Carbon FIPS 49007 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Denver |
| Population | 1,624 |
| Coordinates | 39.644330, -110.599160 |
How ZIP+4 works in 84542
The four digits after the hyphen encode a delivery segment inside 84542. 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 84542 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 84542.
| ZIP | City | Distance |
|---|---|---|
| 84529 | Kenilworth, UT | 10.3 mi |
| 84539 | Sunnyside, UT | 11.5 mi |
| 84520 | East Carbon, UT | 12.2 mi |
| 84501 | Price, UT | 13.4 mi |
| 84521 | Elmo, UT | 18.3 mi |
| 84518 | Cleveland, UT | 23.1 mi |
| 84526 | Helper, UT | 24.4 mi |
| 84528 | Huntington, UT | 29.7 mi |
| 84021 | Duchesne, UT | 32.4 mi |
| 84513 | Castle Dale, UT | 34.9 mi |
| 84537 | Orangeville, UT | 38.7 mi |
Questions about 84542
What is the ZIP+4 code for 84542?
84542 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 84542, you need to look up a specific street address to get them.
What city is 84542?
84542 is assigned to Wellington, Utah, in Carbon 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.