ZIP Code 18337 — Milford, PA
18337 is a standard (street delivery) ZIP code serving Milford, Pennsylvania, in Pike 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 18337 at a glance
| ZIP code | 18337 |
|---|---|
| Primary city | Milford |
| State | Pennsylvania (PA) |
| County | Pike FIPS 42103 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 15,799 |
| Coordinates | 41.334060, -74.873420 |
How ZIP+4 works in 18337
The four digits after the hyphen encode a delivery segment inside 18337. 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 18337 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 18337.
| ZIP | City | Distance |
|---|---|---|
| 18458 | Shohola, PA | 5.7 mi |
| 07827 | Montague, NJ | 7.4 mi |
| 18336 | Matamoras, PA | 7.6 mi |
| 18340 | Millrift, PA | 7.8 mi |
| 12770 | Pond Eddy, NY | 7.9 mi |
| 07851 | Layton, NJ | 9.4 mi |
| 18425 | Greeley, PA | 9.8 mi |
| 18328 | Dingmans Ferry, PA | 10.2 mi |
| 12719 | Barryville, NY | 10.5 mi |
| 12780 | Sparrow Bush, NY | 11 mi |
| 07826 | Branchville, NJ | 11.7 mi |
| 12737 | Glen Spey, NY | 12.4 mi |
Questions about 18337
What is the ZIP+4 code for 18337?
18337 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 18337, you need to look up a specific street address to get them.
What city is 18337?
18337 is assigned to Milford, Pennsylvania, in Pike 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.