ZIP Code 93255 — Onyx, CA
93255 is a standard (street delivery) ZIP code serving Onyx, California, in Kern 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 93255 at a glance
| ZIP code | 93255 |
|---|---|
| Primary city | Onyx |
| State | California (CA) |
| County | Kern FIPS 06029 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Los_Angeles |
| Population | 470 |
| Coordinates | 35.682920, -118.079800 |
How ZIP+4 works in 93255
The four digits after the hyphen encode a delivery segment inside 93255. 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 93255 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 93255.
| ZIP | City | Distance |
|---|---|---|
| 93527 | Inyokern, CA | 9.8 mi |
| 93283 | Weldon, CA | 13.5 mi |
| 93240 | Mountain Mesa, CA | 21.9 mi |
| 93555 | Ridgecrest, CA | 23.1 mi |
| 93205 | Bodfish, CA | 23.2 mi |
| 93238 | Kernville, CA | 24.1 mi |
| 93285 | Wofford Heights, CA | 24.2 mi |
| 93519 | Cantil, CA | 26.2 mi |
| 93554 | Randsburg, CA | 28.2 mi |
| 93518 | Caliente, CA | 30.5 mi |
| 93528 | Johannesburg, CA | 32.6 mi |
| 93260 | Posey, CA | 33.9 mi |
Questions about 93255
What is the ZIP+4 code for 93255?
93255 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 93255, you need to look up a specific street address to get them.
What city is 93255?
93255 is assigned to Onyx, California, in Kern 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.