ZIP Code 95140 — Mount Hamilton, CA
95140 is a standard (street delivery) ZIP code serving Mount Hamilton, California, in Santa Clara 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 95140 at a glance
| ZIP code | 95140 |
|---|---|
| Primary city | Mount Hamilton |
| State | California (CA) |
| County | Santa Clara FIPS 06085 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Los_Angeles |
| Population | 42 |
| Coordinates | 37.348300, -121.640850 |
How ZIP+4 works in 95140
The four digits after the hyphen encode a delivery segment inside 95140. 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 95140 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 95140.
| ZIP | City | Distance |
|---|---|---|
| 95148 | San Jose, CA | 7.8 mi |
| 95127 | San Jose, CA | 8.2 mi |
| 95138 | San Jose, CA | 8.7 mi |
| 95132 | San Jose, CA | 9.6 mi |
| 95135 | San Jose, CA | 9.7 mi |
| 95121 | San Jose, CA | 9.7 mi |
| 95013 | Coyote, CA | 10.7 mi |
| 95122 | San Jose, CA | 10.7 mi |
| 95139 | San Jose, CA | 10.9 mi |
| 95111 | San Jose, CA | 11.1 mi |
| 95116 | San Jose, CA | 11.6 mi |
| 95119 | San Jose, CA | 11.7 mi |
Questions about 95140
What is the ZIP+4 code for 95140?
95140 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 95140, you need to look up a specific street address to get them.
What city is 95140?
95140 is assigned to Mount Hamilton, California, in Santa Clara 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.