ZIP Code 33478 — Jupiter, FL
33478 is a standard (street delivery) ZIP code serving Jupiter, Florida, in Palm Beach 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 33478 at a glance
| ZIP code | 33478 |
|---|---|
| Primary city | Jupiter |
| State | Florida (FL) |
| County | Palm Beach FIPS 12099 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 14,731 |
| Coordinates | 26.937880, -80.262980 |
How ZIP+4 works in 33478
The four digits after the hyphen encode a delivery segment inside 33478. 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 33478 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.
Other ZIP codes in Jupiter
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 33478.
| ZIP | City | Distance |
|---|---|---|
| 34997 | Stuart, FL | 7.8 mi |
| 33418 | Palm Beach Gardens, FL | 8 mi |
| 33458 | Jupiter, FL | 8.2 mi |
| 33412 | West Palm Beach, FL | 9.6 mi |
| 33455 | Hobe Sound, FL | 10 mi |
| 33469 | Jupiter, FL | 10 mi |
| 33477 | Jupiter, FL | 11.4 mi |
| 33410 | Palm Beach Gardens, FL | 12.5 mi |
| 33470 | Loxahatchee, FL | 12.9 mi |
| 33408 | North Palm Beach, FL | 14.3 mi |
| 34990 | Palm City, FL | 14.8 mi |
| 33403 | West Palm Beach, FL | 14.8 mi |
Questions about 33478
What is the ZIP+4 code for 33478?
33478 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 33478, you need to look up a specific street address to get them.
What city is 33478?
33478 is assigned to Jupiter, Florida, in Palm Beach 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.