ZIP Code 85553 — Tonto Basin, AZ
85553 is a standard (street delivery) ZIP code serving Tonto Basin, Arizona, in Gila 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 85553 at a glance
| ZIP code | 85553 |
|---|---|
| Primary city | Tonto Basin |
| State | Arizona (AZ) |
| County | Gila FIPS 04007 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Phoenix |
| Population | 1,755 |
| Coordinates | 33.799320, -111.224380 |
How ZIP+4 works in 85553
The four digits after the hyphen encode a delivery segment inside 85553. 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 85553 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 85553.
| ZIP | City | Distance |
|---|---|---|
| 85264 | Fort Mcdowell, AZ | 17.3 mi |
| 85545 | Roosevelt, AZ | 19 mi |
| 85554 | Young, AZ | 19.6 mi |
| 85263 | Rio Verde, AZ | 24 mi |
| 85215 | Mesa, AZ | 28.5 mi |
| 85541 | Payson, AZ | 29.8 mi |
| 85118 | Gold Canyon, AZ | 30.5 mi |
| 85268 | Fountain Hills, AZ | 32.4 mi |
| 85501 | Globe, AZ | 32.4 mi |
| 85119 | Apache Junction, AZ | 32.8 mi |
| 85262 | Scottsdale, AZ | 33.4 mi |
| 85207 | Mesa, AZ | 33.6 mi |
Questions about 85553
What is the ZIP+4 code for 85553?
85553 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 85553, you need to look up a specific street address to get them.
What city is 85553?
85553 is assigned to Tonto Basin, Arizona, in Gila 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.