ZIP Code 84305 — Clarkston, UT
84305 is a standard (street delivery) ZIP code serving Clarkston, Utah, in Cache 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 84305 at a glance
| ZIP code | 84305 |
|---|---|
| Primary city | Clarkston |
| State | Utah (UT) |
| County | Cache FIPS 49005 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Denver |
| Population | 667 |
| Coordinates | 41.943880, -112.058040 |
How ZIP+4 works in 84305
The four digits after the hyphen encode a delivery segment inside 84305. 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 84305 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 84305.
| ZIP | City | Distance |
|---|---|---|
| 84308 | Cornish, UT | 4.9 mi |
| 84330 | Plymouth, UT | 6.3 mi |
| 84327 | Newton, UT | 6.3 mi |
| 84338 | Trenton, UT | 6.7 mi |
| 83286 | Weston, ID | 7.9 mi |
| 84304 | Cache Junction, UT | 8.6 mi |
| 84311 | Fielding, UT | 9 mi |
| 84320 | Lewiston, UT | 10.6 mi |
| 84306 | Collinston, UT | 11.1 mi |
| 84334 | Riverside, UT | 11.7 mi |
| 84335 | Smithfield, UT | 12.1 mi |
| 84312 | Garland, UT | 12.4 mi |
Questions about 84305
What is the ZIP+4 code for 84305?
84305 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 84305, you need to look up a specific street address to get them.
What city is 84305?
84305 is assigned to Clarkston, Utah, in Cache 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.