ZIP Code 90623 — La Palma, CA
90623 is a standard (street delivery) ZIP code serving La Palma, 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 90623 at a glance
| ZIP code | 90623 |
|---|---|
| Primary city | La Palma |
| State | California (CA) |
| County | Orange FIPS 06059 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Los_Angeles |
| Population | 15,545 |
| Coordinates | 33.850380, -118.040880 |
How ZIP+4 works in 90623
The four digits after the hyphen encode a delivery segment inside 90623. 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 90623 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 90623.
| ZIP | City | Distance |
|---|---|---|
| 90620 | Buena Park, CA | 1.7 mi |
| 90703 | Cerritos, CA | 2 mi |
| 90630 | Cypress, CA | 2.2 mi |
| 90716 | Hawaiian Gardens, CA | 2.3 mi |
| 90715 | Lakewood, CA | 2.3 mi |
| 90701 | Artesia, CA | 2.6 mi |
| 90621 | Buena Park, CA | 3.2 mi |
| 90720 | Los Alamitos, CA | 4 mi |
| 90638 | La Mirada, CA | 4 mi |
| 90713 | Lakewood, CA | 4.1 mi |
| 90639 | La Mirada, CA | 4.1 mi |
| 90680 | Stanton, CA | 4.3 mi |
Questions about 90623
What is the ZIP+4 code for 90623?
90623 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 90623, you need to look up a specific street address to get them.
What city is 90623?
90623 is assigned to La Palma, 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.