ZIP Code 84780 — Washington, UT
84780 is a standard (street delivery) ZIP code serving Washington, Utah, in Washington 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 84780 at a glance
| ZIP code | 84780 |
|---|---|
| Primary city | Washington |
| State | Utah (UT) |
| County | Washington FIPS 49053 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Denver |
| Population | 32,366 |
| Coordinates | 37.127980, -113.481080 |
How ZIP+4 works in 84780
The four digits after the hyphen encode a delivery segment inside 84780. 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 84780 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 84780.
| ZIP | City | Distance |
|---|---|---|
| 84790 | Saint George, UT | 7 mi |
| 84770 | Saint George, UT | 8.2 mi |
| 84746 | Leeds, UT | 10.5 mi |
| 84737 | Hurricane, UT | 12.5 mi |
| 84745 | La Verkin, UT | 13.2 mi |
| 84774 | Toquerville, UT | 13.6 mi |
| 84738 | Ivins, UT | 13.7 mi |
| 84783 | Dammeron Valley, UT | 14.5 mi |
| 84782 | Veyo, UT | 19.2 mi |
| 84781 | Pine Valley, UT | 19.6 mi |
| 84733 | Gunlock, UT | 20.9 mi |
| 84763 | Rockville, UT | 22.7 mi |
Questions about 84780
What is the ZIP+4 code for 84780?
84780 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 84780, you need to look up a specific street address to get them.
What city is 84780?
84780 is assigned to Washington, Utah, in Washington 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.