ZIP Code 85356 — Wellton, AZ
85356 is a standard (street delivery) ZIP code serving Wellton, Arizona, in Yuma 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 85356 at a glance
| ZIP code | 85356 |
|---|---|
| Primary city | Wellton |
| State | Arizona (AZ) |
| County | Yuma FIPS 04027 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Phoenix |
| Population | 3,840 |
| Coordinates | 32.689330, -114.185200 |
How ZIP+4 works in 85356
The four digits after the hyphen encode a delivery segment inside 85356. 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 85356 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 85356.
| ZIP | City | Distance |
|---|---|---|
| 85367 | Yuma, AZ | 12.3 mi |
| 85352 | Tacna, AZ | 16.8 mi |
| 92222 | Bard, CA | 22.1 mi |
| 85347 | Roll, AZ | 23 mi |
| 85365 | Yuma, AZ | 26.5 mi |
| 85364 | Yuma, AZ | 27.4 mi |
| 85350 | Somerton, AZ | 31.6 mi |
| 85349 | San Luis, AZ | 33 mi |
| 85336 | San Luis, AZ | 36.5 mi |
Questions about 85356
What is the ZIP+4 code for 85356?
85356 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 85356, you need to look up a specific street address to get them.
What city is 85356?
85356 is assigned to Wellton, Arizona, in Yuma 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.