ZIP Code 18357 — Skytop, PA
18357 is a standard (street delivery) ZIP code serving Skytop, Pennsylvania, in Monroe 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 18357 at a glance
| ZIP code | 18357 |
|---|---|
| Primary city | Skytop |
| State | Pennsylvania (PA) |
| County | Monroe FIPS 42089 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 147 |
| Coordinates | 41.229560, -75.219100 |
How ZIP+4 works in 18357
The four digits after the hyphen encode a delivery segment inside 18357. 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 18357 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 18357.
| ZIP | City | Distance |
|---|---|---|
| 18325 | Canadensis, PA | 0.3 mi |
| 18323 | Buck Hill Falls, PA | 3.6 mi |
| 18326 | Cresco, PA | 5.3 mi |
| 18342 | Mountainhome, PA | 6 mi |
| 18426 | Greentown, PA | 6.8 mi |
| 18460 | South Sterling, PA | 7.1 mi |
| 18445 | Newfoundland, PA | 8 mi |
| 18466 | Tobyhanna, PA | 8.5 mi |
| 18332 | Henryville, PA | 9.7 mi |
| 18344 | Mount Pocono, PA | 10.1 mi |
| 18371 | Tamiment, PA | 10.7 mi |
| 18302 | East Stroudsburg, PA | 10.8 mi |
Questions about 18357
What is the ZIP+4 code for 18357?
18357 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 18357, you need to look up a specific street address to get them.
What city is 18357?
18357 is assigned to Skytop, Pennsylvania, in Monroe 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.