ZIP Code 17742 — Lairdsville, PA
17742 is a standard (street delivery) ZIP code serving Lairdsville, Pennsylvania, in Lycoming 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 17742 at a glance
| ZIP code | 17742 |
|---|---|
| Primary city | Lairdsville |
| State | Pennsylvania (PA) |
| County | Lycoming FIPS 42081 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 21 |
| Coordinates | 41.239190, -76.582900 |
How ZIP+4 works in 17742
The four digits after the hyphen encode a delivery segment inside 17742. 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 17742 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 17742.
| ZIP | City | Distance |
|---|---|---|
| 17774 | Unityville, PA | 2.2 mi |
| 17737 | Hughesville, PA | 6.1 mi |
| 17762 | Picture Rocks, PA | 7.1 mi |
| 17846 | Millville, PA | 7.3 mi |
| 17758 | Muncy Valley, PA | 8 mi |
| 17756 | Muncy, PA | 8.1 mi |
| 17772 | Turbotville, PA | 10.9 mi |
| 17814 | Benton, PA | 11 mi |
| 17859 | Orangeville, PA | 12.8 mi |
| 17731 | Eagles Mere, PA | 13 mi |
| 18626 | Laporte, PA | 13.4 mi |
| 17884 | Washingtonville, PA | 13.8 mi |
Questions about 17742
What is the ZIP+4 code for 17742?
17742 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 17742, you need to look up a specific street address to get them.
What city is 17742?
17742 is assigned to Lairdsville, Pennsylvania, in Lycoming 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.