ZIP Code 17979 — Summit Station, PA
17979 is a standard (street delivery) ZIP code serving Summit Station, Pennsylvania, in Schuylkill 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 17979 at a glance
| ZIP code | 17979 |
|---|---|
| Primary city | Summit Station |
| State | Pennsylvania (PA) |
| County | Schuylkill FIPS 42107 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 130 |
| Coordinates | 40.567290, -76.202070 |
How ZIP+4 works in 17979
The four digits after the hyphen encode a delivery segment inside 17979. 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 17979 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 17979.
| ZIP | City | Distance |
|---|---|---|
| 17972 | Schuylkill Haven, PA | 1.2 mi |
| 17933 | Friedensburg, PA | 3.3 mi |
| 17929 | Cressona, PA | 4.4 mi |
| 17922 | Auburn, PA | 5 mi |
| 19559 | Strausstown, PA | 5.2 mi |
| 19554 | Shartlesville, PA | 6.4 mi |
| 19507 | Bethel, PA | 6.6 mi |
| 17944 | Llewellyn, PA | 7.9 mi |
| 17951 | Mar Lin, PA | 8 mi |
| 19550 | Rehrersburg, PA | 8.1 mi |
| 19506 | Bernville, PA | 8.5 mi |
| 17923 | Branchdale, PA | 8.9 mi |
Questions about 17979
What is the ZIP+4 code for 17979?
17979 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 17979, you need to look up a specific street address to get them.
What city is 17979?
17979 is assigned to Summit Station, Pennsylvania, in Schuylkill 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.