ZIP Code 85042 — Phoenix, AZ
85042 is a standard (street delivery) ZIP code serving Phoenix, Arizona, in Maricopa 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 85042 at a glance
| ZIP code | 85042 |
|---|---|
| Primary city | Phoenix |
| State | Arizona (AZ) |
| County | Maricopa FIPS 04013 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Phoenix |
| Population | 45,903 |
| Coordinates | 33.359110, -112.049490 |
How ZIP+4 works in 85042
The four digits after the hyphen encode a delivery segment inside 85042. 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 85042 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.
Other ZIP codes in Phoenix
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 85042.
| ZIP | City | Distance |
|---|---|---|
| 85044 | Phoenix, AZ | 2.8 mi |
| 85040 | Phoenix, AZ | 3.5 mi |
| 85041 | Phoenix, AZ | 3.9 mi |
| 85048 | Phoenix, AZ | 4 mi |
| 85045 | Phoenix, AZ | 5.2 mi |
| 85034 | Phoenix, AZ | 5.5 mi |
| 85007 | Phoenix, AZ | 6.5 mi |
| 85003 | Phoenix, AZ | 6.5 mi |
| 85004 | Phoenix, AZ | 6.5 mi |
| 85284 | Tempe, AZ | 6.8 mi |
| 85283 | Tempe, AZ | 6.8 mi |
| 85282 | Tempe, AZ | 7.2 mi |
Questions about 85042
What is the ZIP+4 code for 85042?
85042 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 85042, you need to look up a specific street address to get them.
What city is 85042?
85042 is assigned to Phoenix, Arizona, in Maricopa 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.