ZIP Code 85350 — Somerton, AZ
85350 is a standard (street delivery) ZIP code serving Somerton, 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 85350 at a glance
| ZIP code | 85350 |
|---|---|
| Primary city | Somerton |
| State | Arizona (AZ) |
| County | Yuma FIPS 04027 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Phoenix |
| Population | 19,011 |
| Coordinates | 32.566510, -114.708960 |
How ZIP+4 works in 85350
The four digits after the hyphen encode a delivery segment inside 85350. 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 85350 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 85350.
| ZIP | City | Distance |
|---|---|---|
| 85336 | San Luis, AZ | 5.3 mi |
| 85349 | San Luis, AZ | 6 mi |
| 85364 | Yuma, AZ | 10 mi |
| 92222 | Bard, CA | 17.6 mi |
| 92283 | Winterhaven, CA | 19.3 mi |
| 85367 | Yuma, AZ | 19.5 mi |
| 85356 | Wellton, AZ | 31.6 mi |
| 92250 | Holtville, CA | 34.3 mi |
Questions about 85350
What is the ZIP+4 code for 85350?
85350 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 85350, you need to look up a specific street address to get them.
What city is 85350?
85350 is assigned to Somerton, 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.