ZIP Code 18239 — Milnesville, PA
18239 is a standard (street delivery) ZIP code serving Milnesville, Pennsylvania, in Luzerne 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 18239 at a glance
| ZIP code | 18239 |
|---|---|
| Primary city | Milnesville |
| State | Pennsylvania (PA) |
| County | Luzerne FIPS 42079 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Coordinates | 40.989620, -75.981540 |
How ZIP+4 works in 18239
The four digits after the hyphen encode a delivery segment inside 18239. 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 18239 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 18239.
| ZIP | City | Distance |
|---|---|---|
| 18225 | Harleigh, PA | 0.8 mi |
| 18234 | Lattimer Mines, PA | 0.9 mi |
| 18223 | Ebervale, PA | 1.7 mi |
| 18201 | Hazleton, PA | 3 mi |
| 18222 | Drums, PA | 3.3 mi |
| 18221 | Drifton, PA | 3.4 mi |
| 18219 | Conyngham, PA | 4 mi |
| 18202 | Hazleton, PA | 4.5 mi |
| 18216 | Beaver Meadows, PA | 5.2 mi |
| 18254 | Tresckow, PA | 5.2 mi |
| 18224 | Freeland, PA | 5.5 mi |
| 18230 | Junedale, PA | 5.5 mi |
Questions about 18239
What is the ZIP+4 code for 18239?
18239 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 18239, you need to look up a specific street address to get them.
What city is 18239?
18239 is assigned to Milnesville, Pennsylvania, in Luzerne 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.