ZIP Code 17347 — Mount Wolf, PA
17347 is a standard (street delivery) ZIP code serving Mount Wolf, 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 17347 at a glance
| ZIP code | 17347 |
|---|---|
| Primary city | Mount Wolf |
| State | Pennsylvania (PA) |
| County | York FIPS 42133 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 6,393 |
| Coordinates | 40.049270, -76.682470 |
How ZIP+4 works in 17347
The four digits after the hyphen encode a delivery segment inside 17347. 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 17347 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 17347.
| ZIP | City | Distance |
|---|---|---|
| 17345 | Manchester, PA | 3.2 mi |
| 17318 | Emigsville, PA | 3.2 mi |
| 17406 | York, PA | 3.3 mi |
| 17502 | Bainbridge, PA | 3.6 mi |
| 17547 | Marietta, PA | 5.4 mi |
| 17550 | Maytown, PA | 5.5 mi |
| 17404 | York, PA | 5.6 mi |
| 17402 | York, PA | 6.4 mi |
| 17401 | York, PA | 6.8 mi |
| 17370 | York Haven, PA | 7 mi |
| 17570 | Rheems, PA | 7.9 mi |
| 17403 | York, PA | 9 mi |
Questions about 17347
What is the ZIP+4 code for 17347?
17347 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 17347, you need to look up a specific street address to get them.
What city is 17347?
17347 is assigned to Mount Wolf, 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.