ZIP Code 12140 — Poestenkill, NY
12140 is a standard (street delivery) ZIP code serving Poestenkill, New York, in Rensselaer 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 12140 at a glance
| ZIP code | 12140 |
|---|---|
| Primary city | Poestenkill |
| State | New York (NY) |
| County | Rensselaer FIPS 36083 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 1,512 |
| Coordinates | 42.689000, -73.566890 |
How ZIP+4 works in 12140
The four digits after the hyphen encode a delivery segment inside 12140. 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 12140 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 12140.
| ZIP | City | Distance |
|---|---|---|
| 12198 | Wynantskill, NY | 3.4 mi |
| 12180 | Troy, NY | 4.6 mi |
| 12018 | Averill Park, NY | 4.6 mi |
| 12196 | West Sand Lake, NY | 4.7 mi |
| 12153 | Sand Lake, NY | 6.2 mi |
| 12052 | Cropseyville, NY | 6.5 mi |
| 12183 | Troy, NY | 7.5 mi |
| 12061 | East Greenbush, NY | 7.7 mi |
| 12204 | Albany, NY | 8.2 mi |
| 12082 | Grafton, NY | 8.3 mi |
| 12189 | Watervliet, NY | 8.3 mi |
| 12182 | Troy, NY | 8.4 mi |
Questions about 12140
What is the ZIP+4 code for 12140?
12140 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 12140, you need to look up a specific street address to get them.
What city is 12140?
12140 is assigned to Poestenkill, New York, in Rensselaer 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.