ZIP Code 13864 — Willseyville, NY
13864 is a standard (street delivery) ZIP code serving Willseyville, New York, in Tioga 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 13864 at a glance
| ZIP code | 13864 |
|---|---|
| Primary city | Willseyville |
| State | New York (NY) |
| County | Tioga FIPS 36107 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 1,099 |
| Coordinates | 42.290950, -76.392250 |
How ZIP+4 works in 13864
The four digits after the hyphen encode a delivery segment inside 13864. 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 13864 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 13864.
| ZIP | City | Distance |
|---|---|---|
| 14817 | Brooktondale, NY | 5.5 mi |
| 13743 | Candor, NY | 5.8 mi |
| 14883 | Spencer, NY | 5.8 mi |
| 14881 | Slaterville Springs, NY | 7.8 mi |
| 13736 | Berkshire, NY | 10.3 mi |
| 14889 | Van Etten, NY | 10.9 mi |
| 14850 | Ithaca, NY | 11.2 mi |
| 14853 | Ithaca, NY | 11.7 mi |
| 13811 | Newark Valley, NY | 11.8 mi |
| 14867 | Newfield, NY | 11.9 mi |
| 13062 | Etna, NY | 13.1 mi |
| 13835 | Richford, NY | 13.2 mi |
Questions about 13864
What is the ZIP+4 code for 13864?
13864 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 13864, you need to look up a specific street address to get them.
What city is 13864?
13864 is assigned to Willseyville, New York, in Tioga 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.