ZIP Code 34990 — Palm City, FL
34990 is a standard (street delivery) ZIP code serving Palm City, Florida, in Martin 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 34990 at a glance
| ZIP code | 34990 |
|---|---|
| Primary city | Palm City |
| State | Florida (FL) |
| County | Martin FIPS 12085 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 30,592 |
| Coordinates | 27.136230, -80.356550 |
How ZIP+4 works in 34990
The four digits after the hyphen encode a delivery segment inside 34990. 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 34990 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 34990.
| ZIP | City | Distance |
|---|---|---|
| 34994 | Stuart, FL | 7.6 mi |
| 34984 | Port Saint Lucie, FL | 7.8 mi |
| 34997 | Stuart, FL | 7.8 mi |
| 34953 | Port Saint Lucie, FL | 8 mi |
| 34956 | Indiantown, FL | 9.7 mi |
| 34996 | Stuart, FL | 10.8 mi |
| 34952 | Port Saint Lucie, FL | 11.7 mi |
| 34957 | Jensen Beach, FL | 12.4 mi |
| 33455 | Hobe Sound, FL | 12.7 mi |
| 34983 | Port Saint Lucie, FL | 12.9 mi |
| 34986 | Port Saint Lucie, FL | 13.6 mi |
| 34987 | Port Saint Lucie, FL | 14 mi |
Questions about 34990
What is the ZIP+4 code for 34990?
34990 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 34990, you need to look up a specific street address to get them.
What city is 34990?
34990 is assigned to Palm City, Florida, in Martin 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.