ZIP Code 96091 — Trinity Center, CA
96091 is a standard (street delivery) ZIP code serving Trinity Center, California, in Trinity 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 96091 at a glance
| ZIP code | 96091 |
|---|---|
| Primary city | Trinity Center |
| State | California (CA) |
| County | Trinity FIPS 06105 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Los_Angeles |
| Population | 932 |
| Coordinates | 41.045670, -122.780530 |
How ZIP+4 works in 96091
The four digits after the hyphen encode a delivery segment inside 96091. 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 96091 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 96091.
| ZIP | City | Distance |
|---|---|---|
| 96093 | Weaverville, CA | 20.7 mi |
| 96048 | Junction City, CA | 20.9 mi |
| 96014 | Callahan, CA | 21.5 mi |
| 96033 | French Gulch, CA | 22.4 mi |
| 96031 | Forks Of Salmon, CA | 22.6 mi |
| 96051 | Lakehead, CA | 24.2 mi |
| 96052 | Lewiston, CA | 24.9 mi |
| 96017 | Castella, CA | 25 mi |
| 96025 | Dunsmuir, CA | 26.1 mi |
| 96010 | Big Bar, CA | 26.2 mi |
| 96027 | Etna, CA | 27 mi |
| 96034 | Gazelle, CA | 28.8 mi |
Questions about 96091
What is the ZIP+4 code for 96091?
96091 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 96091, you need to look up a specific street address to get them.
What city is 96091?
96091 is assigned to Trinity Center, California, in Trinity 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.