ZIP Code 10537 — Lake Peekskill, NY
10537 is a standard (street delivery) ZIP code serving Lake Peekskill, New York, in Putnam 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 10537 at a glance
| ZIP code | 10537 |
|---|---|
| Primary city | Lake Peekskill |
| State | New York (NY) |
| County | Putnam FIPS 36079 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 2,439 |
| Coordinates | 41.337840, -73.885280 |
How ZIP+4 works in 10537
The four digits after the hyphen encode a delivery segment inside 10537. 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 10537 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 10537.
| ZIP | City | Distance |
|---|---|---|
| 10547 | Mohegan Lake, NY | 2.7 mi |
| 10517 | Crompond, NY | 3 mi |
| 10524 | Garrison, NY | 3 mi |
| 10588 | Shrub Oak, NY | 3.1 mi |
| 10567 | Cortlandt Manor, NY | 3.4 mi |
| 10566 | Peekskill, NY | 3.8 mi |
| 10535 | Jefferson Valley, NY | 4.4 mi |
| 10579 | Putnam Valley, NY | 4.8 mi |
| 10922 | Fort Montgomery, NY | 5.8 mi |
| 10996 | West Point, NY | 5.8 mi |
| 10911 | Bear Mountain, NY | 5.9 mi |
| 10598 | Yorktown Heights, NY | 6 mi |
Questions about 10537
What is the ZIP+4 code for 10537?
10537 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 10537, you need to look up a specific street address to get them.
What city is 10537?
10537 is assigned to Lake Peekskill, New York, in Putnam 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.