ZIP Code 15344 — Jefferson, PA
15344 is a standard (street delivery) ZIP code serving Jefferson, Pennsylvania, in Greene 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 15344 at a glance
| ZIP code | 15344 |
|---|---|
| Primary city | Jefferson |
| State | Pennsylvania (PA) |
| County | Greene FIPS 42059 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 1,541 |
| Coordinates | 39.922890, -80.050680 |
How ZIP+4 works in 15344
The four digits after the hyphen encode a delivery segment inside 15344. 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 15344 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 15344.
| ZIP | City | Distance |
|---|---|---|
| 15346 | Mather, PA | 1.6 mi |
| 15322 | Clarksville, PA | 3.7 mi |
| 15357 | Rices Landing, PA | 3.8 mi |
| 15320 | Carmichaels, PA | 4.4 mi |
| 15325 | Crucible, PA | 5 mi |
| 15348 | Millsboro, PA | 5.3 mi |
| 15433 | East Millsboro, PA | 6 mi |
| 15447 | Isabella, PA | 6.4 mi |
| 15450 | La Belle, PA | 6.8 mi |
| 15351 | Nemacolin, PA | 7.1 mi |
| 15368 | Vestaburg, PA | 7.1 mi |
| 15333 | Fredericktown, PA | 7.4 mi |
Questions about 15344
What is the ZIP+4 code for 15344?
15344 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 15344, you need to look up a specific street address to get them.
What city is 15344?
15344 is assigned to Jefferson, Pennsylvania, in Greene 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.