ZIP Code 92604 — Irvine, CA
92604 is a standard (street delivery) ZIP code serving Irvine, California, in Orange 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 92604 at a glance
| ZIP code | 92604 |
|---|---|
| Primary city | Irvine |
| State | California (CA) |
| County | Orange FIPS 06059 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Los_Angeles |
| Population | 26,491 |
| Coordinates | 33.687900, -117.788900 |
How ZIP+4 works in 92604
The four digits after the hyphen encode a delivery segment inside 92604. 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 92604 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 Irvine
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 92604.
| ZIP | City | Distance |
|---|---|---|
| 92606 | Irvine, CA | 1.5 mi |
| 92620 | Irvine, CA | 2.2 mi |
| 92614 | Irvine, CA | 2.6 mi |
| 92782 | Tustin, CA | 2.8 mi |
| 92612 | Irvine, CA | 2.8 mi |
| 92618 | Irvine, CA | 3.5 mi |
| 92780 | Tustin, CA | 3.8 mi |
| 92603 | Irvine, CA | 4.1 mi |
| 92697 | Irvine, CA | 4.4 mi |
| 92602 | Irvine, CA | 4.4 mi |
| 92617 | Irvine, CA | 4.4 mi |
| 92707 | Santa Ana, CA | 4.9 mi |
Questions about 92604
What is the ZIP+4 code for 92604?
92604 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 92604, you need to look up a specific street address to get them.
What city is 92604?
92604 is assigned to Irvine, California, in Orange 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.