ZIP Code 16331 — Kossuth, PA
16331 is a standard (street delivery) ZIP code serving Kossuth, Pennsylvania, in Clarion 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 16331 at a glance
| ZIP code | 16331 |
|---|---|
| Primary city | Kossuth |
| State | Pennsylvania (PA) |
| County | Clarion FIPS 42031 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 123 |
| Coordinates | 41.290470, -79.564350 |
How ZIP+4 works in 16331
The four digits after the hyphen encode a delivery segment inside 16331. 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 16331 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 16331.
| ZIP | City | Distance |
|---|---|---|
| 16319 | Cranberry, PA | 4 mi |
| 16232 | Knox, PA | 4.8 mi |
| 16364 | Venus, PA | 5.7 mi |
| 16254 | Shippenville, PA | 6 mi |
| 16334 | Marble, PA | 6 mi |
| 16346 | Seneca, PA | 8.3 mi |
| 16326 | Fryburg, PA | 8.7 mi |
| 16373 | Emlenton, PA | 9 mi |
| 16054 | Saint Petersburg, PA | 10.4 mi |
| 16332 | Lickingville, PA | 11.2 mi |
| 16235 | Lucinda, PA | 11.3 mi |
| 16213 | Callensburg, PA | 11.4 mi |
Questions about 16331
What is the ZIP+4 code for 16331?
16331 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 16331, you need to look up a specific street address to get them.
What city is 16331?
16331 is assigned to Kossuth, Pennsylvania, in Clarion 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.