ZIP Code 92399 — Yucaipa, CA
92399 is a standard (street delivery) ZIP code serving Yucaipa, California, in San Bernardino 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 92399 at a glance
| ZIP code | 92399 |
|---|---|
| Primary city | Yucaipa |
| State | California (CA) |
| County | San Bernardino FIPS 06071 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Los_Angeles |
| Population | 55,366 |
| Coordinates | 34.044690, -117.004000 |
How ZIP+4 works in 92399
The four digits after the hyphen encode a delivery segment inside 92399. 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 92399 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 92399.
| ZIP | City | Distance |
|---|---|---|
| 92359 | Mentone, CA | 4.6 mi |
| 92320 | Calimesa, CA | 4.8 mi |
| 92223 | Beaumont, CA | 7.5 mi |
| 92373 | Redlands, CA | 8.9 mi |
| 92339 | Forest Falls, CA | 9.8 mi |
| 92374 | Redlands, CA | 9.9 mi |
| 92555 | Moreno Valley, CA | 10.9 mi |
| 92346 | Highland, CA | 11.5 mi |
| 92220 | Banning, CA | 11.9 mi |
| 92315 | Big Bear Lake, CA | 12.5 mi |
| 92382 | Running Springs, CA | 12.8 mi |
| 92305 | Angelus Oaks, CA | 13.1 mi |
Questions about 92399
What is the ZIP+4 code for 92399?
92399 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 92399, you need to look up a specific street address to get them.
What city is 92399?
92399 is assigned to Yucaipa, California, in San Bernardino 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.