ZIP Code 15501 — Somerset, PA
15501 is a standard (street delivery) ZIP code serving Somerset, Pennsylvania, in Somerset 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 15501 at a glance
| ZIP code | 15501 |
|---|---|
| Primary city | Somerset |
| State | Pennsylvania (PA) |
| County | Somerset FIPS 42111 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 16,240 |
| Coordinates | 40.035820, -79.130240 |
How ZIP+4 works in 15501
The four digits after the hyphen encode a delivery segment inside 15501. 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 15501 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.
Other ZIP codes in Somerset
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 15501.
| ZIP | City | Distance |
|---|---|---|
| 15561 | Sipesville, PA | 4.5 mi |
| 15555 | Quecreek, PA | 5 mi |
| 15520 | Acosta, PA | 6.1 mi |
| 15502 | Hidden Valley, PA | 6.4 mi |
| 15510 | Somerset, PA | 6.9 mi |
| 15544 | Gray, PA | 6.9 mi |
| 15541 | Friedens, PA | 7.9 mi |
| 15546 | Jenners, PA | 8.2 mi |
| 15557 | Rockwood, PA | 8.6 mi |
| 15547 | Jennerstown, PA | 9.3 mi |
| 15677 | Rector, PA | 9.5 mi |
| 15622 | Champion, PA | 9.9 mi |
Questions about 15501
What is the ZIP+4 code for 15501?
15501 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 15501, you need to look up a specific street address to get them.
What city is 15501?
15501 is assigned to Somerset, Pennsylvania, in Somerset 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.