ZIP Code 12779 — South Fallsburg, NY
12779 is a standard (street delivery) ZIP code serving South Fallsburg, New York, in Sullivan 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 12779 at a glance
| ZIP code | 12779 |
|---|---|
| Primary city | South Fallsburg |
| State | New York (NY) |
| County | Sullivan FIPS 36105 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 2,205 |
| Coordinates | 41.698040, -74.627030 |
How ZIP+4 works in 12779
The four digits after the hyphen encode a delivery segment inside 12779. 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 12779 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 12779.
| ZIP | City | Distance |
|---|---|---|
| 12751 | Kiamesha Lake, NY | 1.8 mi |
| 12784 | Thompsonville, NY | 2.1 mi |
| 12733 | Fallsburg, NY | 2.6 mi |
| 12789 | Woodridge, NY | 3 mi |
| 12738 | Glen Wild, NY | 3.2 mi |
| 12701 | Monticello, NY | 4.9 mi |
| 12747 | Hurleyville, NY | 5 mi |
| 12742 | Harris, NY | 5 mi |
| 12763 | Mountain Dale, NY | 5.5 mi |
| 12775 | Rock Hill, NY | 5.7 mi |
| 12759 | Loch Sheldrake, NY | 6.1 mi |
| 12435 | Greenfield Park, NY | 6.3 mi |
Questions about 12779
What is the ZIP+4 code for 12779?
12779 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 12779, you need to look up a specific street address to get them.
What city is 12779?
12779 is assigned to South Fallsburg, New York, in Sullivan 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.