ZIP Code 93660 — San Joaquin, CA
93660 is a standard (street delivery) ZIP code serving San Joaquin, California, in Fresno 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 93660 at a glance
| ZIP code | 93660 |
|---|---|
| Primary city | San Joaquin |
| State | California (CA) |
| County | Fresno FIPS 06019 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Los_Angeles |
| Population | 4,086 |
| Coordinates | 36.609320, -120.165140 |
How ZIP+4 works in 93660
The four digits after the hyphen encode a delivery segment inside 93660. 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 93660 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 93660.
| ZIP | City | Distance |
|---|---|---|
| 93627 | Helm, CA | 7.2 mi |
| 93668 | Tranquillity, CA | 7.6 mi |
| 93630 | Kerman, CA | 7.8 mi |
| 93608 | Cantua Creek, CA | 12.1 mi |
| 93652 | Raisin City, CA | 14.5 mi |
| 93706 | Fresno, CA | 14.9 mi |
| 93606 | Biola, CA | 15.5 mi |
| 93640 | Mendota, CA | 15.7 mi |
| 93624 | Five Points, CA | 16.5 mi |
| 93656 | Riverdale, CA | 16.7 mi |
| 93723 | Fresno, CA | 17 mi |
| 93609 | Caruthers, CA | 17.6 mi |
Questions about 93660
What is the ZIP+4 code for 93660?
93660 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 93660, you need to look up a specific street address to get them.
What city is 93660?
93660 is assigned to San Joaquin, California, in Fresno 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.