ZIP Code 16371 — Youngsville, PA
16371 is a standard (street delivery) ZIP code serving Youngsville, Pennsylvania, in Warren 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 16371 at a glance
| ZIP code | 16371 |
|---|---|
| Primary city | Youngsville |
| State | Pennsylvania (PA) |
| County | Warren FIPS 42123 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 3,211 |
| Coordinates | 41.867510, -79.318700 |
How ZIP+4 works in 16371
The four digits after the hyphen encode a delivery segment inside 16371. 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 16371 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 16371.
| ZIP | City | Distance |
|---|---|---|
| 16312 | Chandlers Valley, PA | 4.5 mi |
| 16329 | Irvine, PA | 4.7 mi |
| 16350 | Sugar Grove, PA | 6.6 mi |
| 16340 | Pittsfield, PA | 7 mi |
| 16416 | Garland, PA | 8.4 mi |
| 16365 | Warren, PA | 8.7 mi |
| 16436 | Spring Creek, PA | 9.3 mi |
| 16402 | Bear Lake, PA | 10.7 mi |
| 16405 | Columbus, PA | 12.1 mi |
| 16351 | Tidioute, PA | 13.5 mi |
| 16313 | Clarendon, PA | 13.6 mi |
| 16345 | Russell, PA | 13.8 mi |
Questions about 16371
What is the ZIP+4 code for 16371?
16371 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 16371, you need to look up a specific street address to get them.
What city is 16371?
16371 is assigned to Youngsville, Pennsylvania, in Warren 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.