ZIP Code 15957 — Strongstown, PA
15957 is a standard (street delivery) ZIP code serving Strongstown, Pennsylvania, in Indiana 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 15957 at a glance
| ZIP code | 15957 |
|---|---|
| Primary city | Strongstown |
| State | Pennsylvania (PA) |
| County | Indiana FIPS 42063 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 262 |
| Coordinates | 40.539530, -78.897440 |
How ZIP+4 works in 15957
The four digits after the hyphen encode a delivery segment inside 15957. 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 15957 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 15957.
| ZIP | City | Distance |
|---|---|---|
| 15922 | Belsano, PA | 1.8 mi |
| 15960 | Twin Rocks, PA | 3.7 mi |
| 15762 | Nicktown, PA | 5.4 mi |
| 15943 | Nanty Glo, PA | 5.6 mi |
| 15961 | Vintondale, PA | 5.8 mi |
| 15745 | Heilwood, PA | 5.8 mi |
| 15927 | Colver, PA | 6.1 mi |
| 15765 | Penn Run, PA | 6.5 mi |
| 15761 | Mentcle, PA | 6.5 mi |
| 15929 | Dilltown, PA | 7.1 mi |
| 15710 | Alverda, PA | 7.1 mi |
| 15931 | Ebensburg, PA | 7.3 mi |
Questions about 15957
What is the ZIP+4 code for 15957?
15957 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 15957, you need to look up a specific street address to get them.
What city is 15957?
15957 is assigned to Strongstown, Pennsylvania, in Indiana 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.