ZIP Code 10517 — Crompond, NY
10517 is a standard (street delivery) ZIP code serving Crompond, New York, in Westchester 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 10517 at a glance
| ZIP code | 10517 |
|---|---|
| Primary city | Crompond |
| State | New York (NY) |
| County | Westchester FIPS 36119 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 584 |
| Coordinates | 41.298370, -73.860130 |
How ZIP+4 works in 10517
The four digits after the hyphen encode a delivery segment inside 10517. 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 10517 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 10517.
| ZIP | City | Distance |
|---|---|---|
| 10547 | Mohegan Lake, NY | 1.2 mi |
| 10567 | Cortlandt Manor, NY | 2 mi |
| 10588 | Shrub Oak, NY | 2.9 mi |
| 10537 | Lake Peekskill, NY | 3 mi |
| 10566 | Peekskill, NY | 3.1 mi |
| 10598 | Yorktown Heights, NY | 3.5 mi |
| 10535 | Jefferson Valley, NY | 4 mi |
| 10511 | Buchanan, NY | 5 mi |
| 10527 | Granite Springs, NY | 5.1 mi |
| 10501 | Amawalk, NY | 5.2 mi |
| 10520 | Croton On Hudson, NY | 5.3 mi |
| 10548 | Montrose, NY | 5.4 mi |
Questions about 10517
What is the ZIP+4 code for 10517?
10517 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 10517, you need to look up a specific street address to get them.
What city is 10517?
10517 is assigned to Crompond, New York, in Westchester 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.