ZIP Code 10921 — Florida, NY
10921 is a standard (street delivery) ZIP code serving Florida, 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 10921 at a glance
| ZIP code | 10921 |
|---|---|
| Primary city | Florida |
| State | New York (NY) |
| County | Orange FIPS 36071 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 4,231 |
| Coordinates | 41.329200, -74.365100 |
How ZIP+4 works in 10921
The four digits after the hyphen encode a delivery segment inside 10921. 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 10921 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 10921.
| ZIP | City | Distance |
|---|---|---|
| 10924 | Goshen, NY | 3.5 mi |
| 10990 | Warwick, NY | 4.4 mi |
| 10958 | New Hampton, NY | 4.6 mi |
| 10918 | Chester, NY | 5.7 mi |
| 10973 | Slate Hill, NY | 6.9 mi |
| 10969 | Pine Island, NY | 6.9 mi |
| 10933 | Johnson, NY | 8 mi |
| 10950 | Monroe, NY | 8.7 mi |
| 07418 | Glenwood, NJ | 8.9 mi |
| 10998 | Westtown, NY | 9.1 mi |
| 10925 | Greenwood Lake, NY | 9.6 mi |
| 10940 | Middletown, NY | 10 mi |
Questions about 10921
What is the ZIP+4 code for 10921?
10921 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 10921, you need to look up a specific street address to get them.
What city is 10921?
10921 is assigned to Florida, 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.