ZIP Code 14557 — South Byron, NY
14557 is a standard (street delivery) ZIP code serving South Byron, New York, in Genesee 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 14557 at a glance
| ZIP code | 14557 |
|---|---|
| Primary city | South Byron |
| State | New York (NY) |
| County | Genesee FIPS 36037 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 128 |
| Coordinates | 43.048070, -78.061260 |
How ZIP+4 works in 14557
The four digits after the hyphen encode a delivery segment inside 14557. 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 14557 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 14557.
| ZIP | City | Distance |
|---|---|---|
| 14422 | Byron, NY | 2.5 mi |
| 14416 | Bergen, NY | 4.7 mi |
| 14143 | Stafford, NY | 5.1 mi |
| 14058 | Elba, NY | 6.3 mi |
| 14482 | Le Roy, NY | 6.8 mi |
| 14020 | Batavia, NY | 8.6 mi |
| 14511 | Mumford, NY | 9.9 mi |
| 14428 | Churchville, NY | 10.4 mi |
| 14054 | East Bethany, NY | 10.4 mi |
| 14470 | Holley, NY | 11.2 mi |
| 14125 | Oakfield, NY | 11.5 mi |
| 14525 | Pavilion, NY | 12.3 mi |
Questions about 14557
What is the ZIP+4 code for 14557?
14557 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 14557, you need to look up a specific street address to get them.
What city is 14557?
14557 is assigned to South Byron, New York, in Genesee 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.