ZIP Code 91351 — Canyon Country, CA
91351 is a standard (street delivery) ZIP code serving Canyon Country, California, in Los Angeles 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 91351 at a glance
| ZIP code | 91351 |
|---|---|
| Primary city | Canyon Country |
| State | California (CA) |
| County | Los Angeles FIPS 06037 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Los_Angeles |
| Population | 33,155 |
| Coordinates | 34.432690, -118.462760 |
How ZIP+4 works in 91351
The four digits after the hyphen encode a delivery segment inside 91351. 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 91351 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 Canyon Country
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 91351.
| ZIP | City | Distance |
|---|---|---|
| 91350 | Santa Clarita, CA | 2.3 mi |
| 91321 | Newhall, CA | 5 mi |
| 91354 | Valencia, CA | 5.5 mi |
| 91387 | Canyon Country, CA | 5.8 mi |
| 91355 | Valencia, CA | 6.9 mi |
| 91390 | Santa Clarita, CA | 7.5 mi |
| 91342 | Sylmar, CA | 8.9 mi |
| 91381 | Stevenson Ranch, CA | 9.1 mi |
| 91344 | Granada Hills, CA | 10.1 mi |
| 91340 | San Fernando, CA | 10.2 mi |
| 91345 | Mission Hills, CA | 11.5 mi |
| 91326 | Porter Ranch, CA | 11.8 mi |
Questions about 91351
What is the ZIP+4 code for 91351?
91351 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 91351, you need to look up a specific street address to get them.
What city is 91351?
91351 is assigned to Canyon Country, California, in Los Angeles 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.