ZIP Code 17845 — Millmont, PA
17845 is a standard (street delivery) ZIP code serving Millmont, Pennsylvania, in Union 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 17845 at a glance
| ZIP code | 17845 |
|---|---|
| Primary city | Millmont |
| State | Pennsylvania (PA) |
| County | Union FIPS 42119 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 2,058 |
| Coordinates | 40.883080, -77.216280 |
How ZIP+4 works in 17845
The four digits after the hyphen encode a delivery segment inside 17845. 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 17845 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 17845.
| ZIP | City | Distance |
|---|---|---|
| 17835 | Laurelton, PA | 1 mi |
| 17829 | Hartleton, PA | 3.4 mi |
| 17885 | Weikert, PA | 3.9 mi |
| 17880 | Swengel, PA | 4.9 mi |
| 16882 | Woodward, PA | 6.6 mi |
| 17813 | Beavertown, PA | 7.1 mi |
| 17844 | Mifflinburg, PA | 8.5 mi |
| 17862 | Penns Creek, PA | 8.5 mi |
| 16820 | Aaronsburg, PA | 9.3 mi |
| 16872 | Rebersburg, PA | 9.5 mi |
| 17812 | Beaver Springs, PA | 10.2 mi |
| 17861 | Paxtonville, PA | 10.4 mi |
Questions about 17845
What is the ZIP+4 code for 17845?
17845 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 17845, you need to look up a specific street address to get them.
What city is 17845?
17845 is assigned to Millmont, Pennsylvania, in Union 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.