ZIP Code 16253 — Seminole, PA
16253 is a standard (street delivery) ZIP code serving Seminole, Pennsylvania, in Armstrong 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 16253 at a glance
| ZIP code | 16253 |
|---|---|
| Primary city | Seminole |
| State | Pennsylvania (PA) |
| County | Armstrong FIPS 42005 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 87 |
| Coordinates | 40.954000, -79.341060 |
How ZIP+4 works in 16253
The four digits after the hyphen encode a delivery segment inside 16253. 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 16253 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 16253.
| ZIP | City | Distance |
|---|---|---|
| 16223 | Distant, PA | 2.4 mi |
| 16242 | New Bethlehem, PA | 3.5 mi |
| 16245 | Oak Ridge, PA | 4.1 mi |
| 16230 | Hawthorn, PA | 5.7 mi |
| 16259 | Templeton, PA | 6.3 mi |
| 16222 | Dayton, PA | 7.2 mi |
| 15778 | Timblin, PA | 7.5 mi |
| 16224 | Fairmount City, PA | 7.9 mi |
| 16240 | Mayport, PA | 8.2 mi |
| 15770 | Ringgold, PA | 10 mi |
| 16248 | Rimersburg, PA | 10.1 mi |
| 16210 | Adrian, PA | 10.1 mi |
Questions about 16253
What is the ZIP+4 code for 16253?
16253 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 16253, you need to look up a specific street address to get them.
What city is 16253?
16253 is assigned to Seminole, Pennsylvania, in Armstrong 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.