ZIP Code 15311 — Amity, PA
15311 is a standard (street delivery) ZIP code serving Amity, Pennsylvania, in Washington 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 15311 at a glance
| ZIP code | 15311 |
|---|---|
| Primary city | Amity |
| State | Pennsylvania (PA) |
| County | Washington FIPS 42125 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 843 |
| Coordinates | 40.046080, -80.185920 |
How ZIP+4 works in 15311
The four digits after the hyphen encode a delivery segment inside 15311. 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 15311 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 15311.
| ZIP | City | Distance |
|---|---|---|
| 15345 | Marianna, PA | 4.5 mi |
| 15329 | Prosperity, PA | 4.7 mi |
| 15360 | Scenery Hill, PA | 6.2 mi |
| 15324 | Cokeburg, PA | 7.4 mi |
| 15313 | Beallsville, PA | 8.4 mi |
| 15364 | Sycamore, PA | 8.7 mi |
| 15322 | Clarksville, PA | 8.7 mi |
| 15353 | Nineveh, PA | 8.8 mi |
| 15301 | Washington, PA | 8.9 mi |
| 15333 | Fredericktown, PA | 9.2 mi |
| 15331 | Ellsworth, PA | 9.6 mi |
| 15346 | Mather, PA | 9.6 mi |
Questions about 15311
What is the ZIP+4 code for 15311?
15311 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 15311, you need to look up a specific street address to get them.
What city is 15311?
15311 is assigned to Amity, Pennsylvania, in Washington 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.