ZIP Code 17365 — Wellsville, PA
17365 is a standard (street delivery) ZIP code serving Wellsville, Pennsylvania, in York 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 17365 at a glance
| ZIP code | 17365 |
|---|---|
| Primary city | Wellsville |
| State | Pennsylvania (PA) |
| County | York FIPS 42133 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 2,897 |
| Coordinates | 40.056960, -76.939200 |
How ZIP+4 works in 17365
The four digits after the hyphen encode a delivery segment inside 17365. 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 17365 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 17365.
| ZIP | City | Distance |
|---|---|---|
| 17315 | Dover, PA | 4.6 mi |
| 17323 | Franklintown, PA | 4.8 mi |
| 17019 | Dillsburg, PA | 5.1 mi |
| 17339 | Lewisberry, PA | 6.1 mi |
| 17316 | East Berlin, PA | 7 mi |
| 17027 | Grantham, PA | 7.4 mi |
| 17055 | Mechanicsburg, PA | 8.9 mi |
| 17364 | Thomasville, PA | 9 mi |
| 17370 | York Haven, PA | 9.3 mi |
| 17404 | York, PA | 9.5 mi |
| 17372 | York Springs, PA | 9.7 mi |
| 17319 | Etters, PA | 10.4 mi |
Questions about 17365
What is the ZIP+4 code for 17365?
17365 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 17365, you need to look up a specific street address to get them.
What city is 17365?
17365 is assigned to Wellsville, Pennsylvania, in York 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.