ZIP Code 12139 — Piseco, NY
12139 is a standard (street delivery) ZIP code serving Piseco, New York, in Hamilton 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 12139 at a glance
| ZIP code | 12139 |
|---|---|
| Primary city | Piseco |
| State | New York (NY) |
| County | Hamilton FIPS 36041 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 227 |
| Coordinates | 43.520960, -74.565520 |
How ZIP+4 works in 12139
The four digits after the hyphen encode a delivery segment inside 12139. 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 12139 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 12139.
| ZIP | City | Distance |
|---|---|---|
| 12108 | Lake Pleasant, NY | 7.7 mi |
| 13353 | Hoffmeister, NY | 8.8 mi |
| 12164 | Speculator, NY | 10.2 mi |
| 12190 | Wells, NY | 15 mi |
| 13360 | Inlet, NY | 16.4 mi |
| 12864 | Sabael, NY | 19.3 mi |
| 12032 | Caroga Lake, NY | 19.4 mi |
| 13436 | Raquette Lake, NY | 20.3 mi |
| 13338 | Forestport, NY | 20.7 mi |
| 12842 | Indian Lake, NY | 21.5 mi |
| 13420 | Old Forge, NY | 21.8 mi |
| 13470 | Stratford, NY | 22 mi |
Questions about 12139
What is the ZIP+4 code for 12139?
12139 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 12139, you need to look up a specific street address to get them.
What city is 12139?
12139 is assigned to Piseco, New York, in Hamilton 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.