ZIP Code 15479 — Smithton, PA
15479 is a standard (street delivery) ZIP code serving Smithton, Pennsylvania, in Westmoreland 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 15479 at a glance
| ZIP code | 15479 |
|---|---|
| Primary city | Smithton |
| State | Pennsylvania (PA) |
| County | Westmoreland FIPS 42129 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 2,010 |
| Coordinates | 40.152240, -79.713290 |
How ZIP+4 works in 15479
The four digits after the hyphen encode a delivery segment inside 15479. 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 15479 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 15479.
| ZIP | City | Distance |
|---|---|---|
| 15448 | Jacobs Creek, PA | 1.6 mi |
| 15695 | Wyano, PA | 3.3 mi |
| 15492 | Wickhaven, PA | 3.5 mi |
| 15679 | Ruffs Dale, PA | 3.9 mi |
| 15698 | Yukon, PA | 4.6 mi |
| 15089 | West Newton, PA | 4.9 mi |
| 15640 | Hutchinson, PA | 5 mi |
| 15428 | Dawson, PA | 5.2 mi |
| 15012 | Belle Vernon, PA | 5.2 mi |
| 15612 | Alverton, PA | 6.1 mi |
| 15473 | Perryopolis, PA | 6.3 mi |
| 15683 | Scottdale, PA | 6.4 mi |
Questions about 15479
What is the ZIP+4 code for 15479?
15479 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 15479, you need to look up a specific street address to get them.
What city is 15479?
15479 is assigned to Smithton, Pennsylvania, in Westmoreland 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.