ZIP Code 17355 — Railroad, PA
17355 is a standard (street delivery) ZIP code serving Railroad, 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 17355 at a glance
| ZIP code | 17355 |
|---|---|
| Primary city | Railroad |
| State | Pennsylvania (PA) |
| County | York FIPS 42133 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 322 |
| Coordinates | 39.759780, -76.696000 |
How ZIP+4 works in 17355
The four digits after the hyphen encode a delivery segment inside 17355. 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 17355 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 17355.
| ZIP | City | Distance |
|---|---|---|
| 17349 | New Freedom, PA | 0.9 mi |
| 17361 | Shrewsbury, PA | 1.1 mi |
| 17327 | Glen Rock, PA | 3.3 mi |
| 21105 | Maryland Line, MD | 3.9 mi |
| 21053 | Freeland, MD | 4.7 mi |
| 17363 | Stewartstown, PA | 5.9 mi |
| 17342 | Loganville, PA | 6.4 mi |
| 17360 | Seven Valleys, PA | 7.1 mi |
| 21120 | Parkton, MD | 7.8 mi |
| 17329 | Glenville, PA | 8.4 mi |
| 17407 | York, PA | 8.7 mi |
| 17311 | Codorus, PA | 8.7 mi |
Questions about 17355
What is the ZIP+4 code for 17355?
17355 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 17355, you need to look up a specific street address to get them.
What city is 17355?
17355 is assigned to Railroad, 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.