ZIP Code 95642 — Jackson, CA
95642 is a standard (street delivery) ZIP code serving Jackson, California, in Amador 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 95642 at a glance
| ZIP code | 95642 |
|---|---|
| Primary city | Jackson |
| State | California (CA) |
| County | Amador FIPS 06005 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Los_Angeles |
| Population | 7,135 |
| Coordinates | 38.343400, -120.763980 |
How ZIP+4 works in 95642
The four digits after the hyphen encode a delivery segment inside 95642. 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 95642 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 95642.
| ZIP | City | Distance |
|---|---|---|
| 95685 | Sutter Creek, CA | 5.8 mi |
| 95601 | Amador City, CA | 6.8 mi |
| 95665 | Pine Grove, CA | 7 mi |
| 95245 | Mokelumne Hill, CA | 8.3 mi |
| 95699 | Drytown, CA | 8.4 mi |
| 95226 | Campo Seco, CA | 9.2 mi |
| 95640 | Ione, CA | 9.5 mi |
| 95232 | Glencoe, CA | 10.2 mi |
| 95225 | Burson, CA | 11.1 mi |
| 95689 | Volcano, CA | 11.9 mi |
| 95629 | Fiddletown, CA | 12.4 mi |
| 95669 | Plymouth, CA | 12.5 mi |
Questions about 95642
What is the ZIP+4 code for 95642?
95642 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 95642, you need to look up a specific street address to get them.
What city is 95642?
95642 is assigned to Jackson, California, in Amador 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.