ZIP Code 12784 — Thompsonville, NY
12784 is a standard (street delivery) ZIP code serving Thompsonville, 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 12784 at a glance
| ZIP code | 12784 |
|---|---|
| Primary city | Thompsonville |
| State | New York (NY) |
| County | Sullivan FIPS 36105 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Coordinates | 41.669070, -74.614850 |
How ZIP+4 works in 12784
The four digits after the hyphen encode a delivery segment inside 12784. 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 12784 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 12784.
| ZIP | City | Distance |
|---|---|---|
| 12738 | Glen Wild, NY | 1.4 mi |
| 12779 | South Fallsburg, NY | 2.1 mi |
| 12751 | Kiamesha Lake, NY | 2.9 mi |
| 12775 | Rock Hill, NY | 3.6 mi |
| 12789 | Woodridge, NY | 3.8 mi |
| 12733 | Fallsburg, NY | 4.5 mi |
| 12701 | Monticello, NY | 4.5 mi |
| 12763 | Mountain Dale, NY | 4.9 mi |
| 12742 | Harris, NY | 6.4 mi |
| 12435 | Greenfield Park, NY | 6.7 mi |
| 12747 | Hurleyville, NY | 7.1 mi |
| 12769 | Phillipsport, NY | 7.5 mi |
Questions about 12784
What is the ZIP+4 code for 12784?
12784 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 12784, you need to look up a specific street address to get them.
What city is 12784?
12784 is assigned to Thompsonville, 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.