ZIP Code 85551 — Solomon, AZ
85551 is a standard (street delivery) ZIP code serving Solomon, Arizona, in Graham 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 85551 at a glance
| ZIP code | 85551 |
|---|---|
| Primary city | Solomon |
| State | Arizona (AZ) |
| County | Graham FIPS 04009 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Phoenix |
| Population | 361 |
| Coordinates | 32.730480, -109.562520 |
How ZIP+4 works in 85551
The four digits after the hyphen encode a delivery segment inside 85551. 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 85551 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 85551.
| ZIP | City | Distance |
|---|---|---|
| 85546 | Safford, AZ | 1.4 mi |
| 85552 | Thatcher, AZ | 14.4 mi |
| 85531 | Central, AZ | 16.3 mi |
| 85540 | Morenci, AZ | 20.8 mi |
| 85534 | Duncan, AZ | 24.2 mi |
| 85543 | Pima, AZ | 25.2 mi |
| 85535 | Eden, AZ | 26.9 mi |
| 85605 | Bowie, AZ | 30.3 mi |
| 85643 | Willcox, AZ | 31.8 mi |
| 85536 | Fort Thomas, AZ | 38.2 mi |
Questions about 85551
What is the ZIP+4 code for 85551?
85551 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 85551, you need to look up a specific street address to get them.
What city is 85551?
85551 is assigned to Solomon, Arizona, in Graham 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.