ZIP Code 18218 — Coaldale, PA
18218 is a standard (street delivery) ZIP code serving Coaldale, 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 18218 at a glance
| ZIP code | 18218 |
|---|---|
| Primary city | Coaldale |
| State | Pennsylvania (PA) |
| County | Schuylkill FIPS 42107 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 2,514 |
| Coordinates | 40.819740, -75.916110 |
How ZIP+4 works in 18218
The four digits after the hyphen encode a delivery segment inside 18218. 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 18218 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 18218.
| ZIP | City | Distance |
|---|---|---|
| 18232 | Lansford, PA | 2.2 mi |
| 18250 | Summit Hill, PA | 2.9 mi |
| 18252 | Tamaqua, PA | 4.3 mi |
| 18240 | Nesquehoning, PA | 4.7 mi |
| 18245 | Quakake, PA | 6.4 mi |
| 18230 | Junedale, PA | 7 mi |
| 18254 | Tresckow, PA | 7.1 mi |
| 18231 | Kelayres, PA | 7.2 mi |
| 18211 | Andreas, PA | 7.2 mi |
| 18237 | Mcadoo, PA | 7.3 mi |
| 17982 | Tuscarora, PA | 7.3 mi |
| 17952 | Mary D, PA | 8.4 mi |
Questions about 18218
What is the ZIP+4 code for 18218?
18218 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 18218, you need to look up a specific street address to get them.
What city is 18218?
18218 is assigned to Coaldale, 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.