ZIP Code 15771 — Rochester Mills, PA
15771 is a standard (street delivery) ZIP code serving Rochester Mills, 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 15771 at a glance
| ZIP code | 15771 |
|---|---|
| Primary city | Rochester Mills |
| State | Pennsylvania (PA) |
| County | Indiana FIPS 42063 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 903 |
| Coordinates | 40.833090, -78.990090 |
How ZIP+4 works in 15771
The four digits after the hyphen encode a delivery segment inside 15771. 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 15771 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 15771.
| ZIP | City | Distance |
|---|---|---|
| 15759 | Marion Center, PA | 4.7 mi |
| 15772 | Rossiter, PA | 5.5 mi |
| 15741 | Gipsy, PA | 5.6 mi |
| 15742 | Glen Campbell, PA | 6.5 mi |
| 15780 | Valier, PA | 6.7 mi |
| 15744 | Hamilton, PA | 7.2 mi |
| 15734 | Dixonville, PA | 7.8 mi |
| 16256 | Smicksburg, PA | 8 mi |
| 15712 | Arcadia, PA | 8 mi |
| 15746 | Hillsdale, PA | 8.2 mi |
| 15767 | Punxsutawney, PA | 8.7 mi |
| 15763 | Northpoint, PA | 8.8 mi |
Questions about 15771
What is the ZIP+4 code for 15771?
15771 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 15771, you need to look up a specific street address to get them.
What city is 15771?
15771 is assigned to Rochester Mills, 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.