ZIP Code 33576 — San Antonio, FL
33576 is a standard (street delivery) ZIP code serving San Antonio, Florida, in Pasco 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 33576 at a glance
| ZIP code | 33576 |
|---|---|
| Primary city | San Antonio |
| State | Florida (FL) |
| County | Pasco FIPS 12101 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 6,273 |
| Coordinates | 28.324720, -82.316820 |
How ZIP+4 works in 33576
The four digits after the hyphen encode a delivery segment inside 33576. 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 33576 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 33576.
| ZIP | City | Distance |
|---|---|---|
| 33574 | Saint Leo, FL | 3.7 mi |
| 33545 | Wesley Chapel, FL | 4.4 mi |
| 33544 | Wesley Chapel, FL | 6 mi |
| 33523 | Dade City, FL | 7.2 mi |
| 33525 | Dade City, FL | 8.1 mi |
| 33543 | Wesley Chapel, FL | 8.4 mi |
| 34639 | Land O'lakes, FL | 8.6 mi |
| 33541 | Zephyrhills, FL | 8.7 mi |
| 34637 | Land O'lakes, FL | 9.1 mi |
| 33542 | Zephyrhills, FL | 10.5 mi |
| 34610 | Spring Hill, FL | 11.9 mi |
| 33540 | Zephyrhills, FL | 12.5 mi |
Questions about 33576
What is the ZIP+4 code for 33576?
33576 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 33576, you need to look up a specific street address to get them.
What city is 33576?
33576 is assigned to San Antonio, Florida, in Pasco 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.