ZIP Code 95951 — Hamilton City, CA
95951 is a standard (street delivery) ZIP code serving Hamilton City, California, in Glenn 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 95951 at a glance
| ZIP code | 95951 |
|---|---|
| Primary city | Hamilton City |
| State | California (CA) |
| County | Glenn FIPS 06021 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Los_Angeles |
| Population | 2,698 |
| Coordinates | 39.714730, -122.001970 |
How ZIP+4 works in 95951
The four digits after the hyphen encode a delivery segment inside 95951. 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 95951 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 95951.
| ZIP | City | Distance |
|---|---|---|
| 95929 | Chico, CA | 8.1 mi |
| 95926 | Chico, CA | 8.7 mi |
| 95928 | Chico, CA | 9.1 mi |
| 95943 | Glenn, CA | 9.7 mi |
| 95913 | Artois, CA | 11.7 mi |
| 95938 | Durham, CA | 13.2 mi |
| 95973 | Chico, CA | 14 mi |
| 95958 | Nelson, CA | 15 mi |
| 95963 | Orland, CA | 16.1 mi |
| 96092 | Vina, CA | 17.9 mi |
| 95920 | Butte City, CA | 17.9 mi |
| 95969 | Paradise, CA | 19.5 mi |
Questions about 95951
What is the ZIP+4 code for 95951?
95951 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 95951, you need to look up a specific street address to get them.
What city is 95951?
95951 is assigned to Hamilton City, California, in Glenn 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.