ZIP Code 17970 — Saint Clair, PA
17970 is a standard (street delivery) ZIP code serving Saint Clair, 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 17970 at a glance
| ZIP code | 17970 |
|---|---|
| Primary city | Saint Clair |
| State | Pennsylvania (PA) |
| County | Schuylkill FIPS 42107 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 3,171 |
| Coordinates | 40.720720, -76.190560 |
How ZIP+4 works in 17970
The four digits after the hyphen encode a delivery segment inside 17970. 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 17970 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 17970.
| ZIP | City | Distance |
|---|---|---|
| 17965 | Port Carbon, PA | 2 mi |
| 17959 | New Philadelphia, PA | 2.5 mi |
| 17974 | Seltzer, PA | 2.9 mi |
| 17901 | Pottsville, PA | 3.9 mi |
| 17930 | Cumbola, PA | 4 mi |
| 17951 | Mar Lin, PA | 4 mi |
| 17954 | Minersville, PA | 4.2 mi |
| 17931 | Frackville, PA | 4.6 mi |
| 17953 | Middleport, PA | 5.1 mi |
| 17934 | Gilberton, PA | 5.4 mi |
| 17949 | Mahanoy Plane, PA | 5.7 mi |
| 17929 | Cressona, PA | 6.2 mi |
Questions about 17970
What is the ZIP+4 code for 17970?
17970 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 17970, you need to look up a specific street address to get them.
What city is 17970?
17970 is assigned to Saint Clair, 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.