ZIP Code 12518 — Cornwall, NY
12518 is a standard (street delivery) ZIP code serving Cornwall, New York, in Orange 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 12518 at a glance
| ZIP code | 12518 |
|---|---|
| Primary city | Cornwall |
| State | New York (NY) |
| County | Orange FIPS 36071 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 6,114 |
| Coordinates | 41.418470, -74.035710 |
How ZIP+4 works in 12518
The four digits after the hyphen encode a delivery segment inside 12518. 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 12518 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 12518.
| ZIP | City | Distance |
|---|---|---|
| 12520 | Cornwall On Hudson, NY | 1.8 mi |
| 10953 | Mountainville, NY | 2.3 mi |
| 12553 | New Windsor, NY | 3.5 mi |
| 10996 | West Point, NY | 3.8 mi |
| 12577 | Salisbury Mills, NY | 4.2 mi |
| 10928 | Highland Falls, NY | 5.3 mi |
| 10930 | Highland Mills, NY | 5.3 mi |
| 10922 | Fort Montgomery, NY | 6.6 mi |
| 10992 | Washingtonville, NY | 6.7 mi |
| 10524 | Garrison, NY | 6.7 mi |
| 12508 | Beacon, NY | 6.9 mi |
| 10516 | Cold Spring, NY | 7.3 mi |
Questions about 12518
What is the ZIP+4 code for 12518?
12518 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 12518, you need to look up a specific street address to get them.
What city is 12518?
12518 is assigned to Cornwall, New York, in Orange 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.