ZIP Code 12823 — Cossayuna, NY
12823 is a standard (street delivery) ZIP code serving Cossayuna, New York, in Washington 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 12823 at a glance
| ZIP code | 12823 |
|---|---|
| Primary city | Cossayuna |
| State | New York (NY) |
| County | Washington FIPS 36115 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 597 |
| Coordinates | 43.179450, -73.406280 |
How ZIP+4 works in 12823
The four digits after the hyphen encode a delivery segment inside 12823. 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 12823 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 12823.
| ZIP | City | Distance |
|---|---|---|
| 12865 | Salem, NY | 4 mi |
| 12809 | Argyle, NY | 5.1 mi |
| 12873 | Shushan, NY | 6.5 mi |
| 12834 | Greenwich, NY | 7.5 mi |
| 12816 | Cambridge, NY | 9 mi |
| 12828 | Fort Edward, NY | 9.7 mi |
| 05776 | West Rupert, VT | 11.1 mi |
| 12838 | Hartford, NY | 11.3 mi |
| 12884 | Victory Mills, NY | 11.3 mi |
| 05250 | Arlington, VT | 11.5 mi |
| 12871 | Schuylerville, NY | 12 mi |
| 05768 | Rupert, VT | 12.4 mi |
Questions about 12823
What is the ZIP+4 code for 12823?
12823 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 12823, you need to look up a specific street address to get them.
What city is 12823?
12823 is assigned to Cossayuna, New York, in Washington 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.