ZIP Code 95311 — Coulterville, CA
95311 is a standard (street delivery) ZIP code serving Coulterville, California, in Mariposa 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 95311 at a glance
| ZIP code | 95311 |
|---|---|
| Primary city | Coulterville |
| State | California (CA) |
| County | Mariposa FIPS 06043 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Los_Angeles |
| Population | 2,245 |
| Coordinates | 37.704430, -120.083440 |
How ZIP+4 works in 95311
The four digits after the hyphen encode a delivery segment inside 95311. 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 95311 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 95311.
| ZIP | City | Distance |
|---|---|---|
| 95345 | Midpines, CA | 10.4 mi |
| 95338 | Mariposa, CA | 14.5 mi |
| 95318 | El Portal, CA | 15.4 mi |
| 95305 | Big Oak Flat, CA | 16.9 mi |
| 95325 | Hornitos, CA | 17.7 mi |
| 95329 | La Grange, CA | 18.1 mi |
| 95379 | Tuolumne, CA | 19.2 mi |
| 95369 | Snelling, CA | 21.9 mi |
| 95372 | Soulsbyville, CA | 22 mi |
| 95309 | Chinese Camp, CA | 22.3 mi |
| 95306 | Catheys Valley, CA | 23.8 mi |
| 95327 | Jamestown, CA | 24.1 mi |
Questions about 95311
What is the ZIP+4 code for 95311?
95311 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 95311, you need to look up a specific street address to get them.
What city is 95311?
95311 is assigned to Coulterville, California, in Mariposa 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.