ZIP Code 17540 — Leola, PA
17540 is a standard (street delivery) ZIP code serving Leola, Pennsylvania, in Lancaster 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 17540 at a glance
| ZIP code | 17540 |
|---|---|
| Primary city | Leola |
| State | Pennsylvania (PA) |
| County | Lancaster FIPS 42071 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 10,728 |
| Coordinates | 40.098770, -76.188800 |
How ZIP+4 works in 17540
The four digits after the hyphen encode a delivery segment inside 17540. 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 17540 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 17540.
| ZIP | City | Distance |
|---|---|---|
| 17508 | Brownstown, PA | 2.2 mi |
| 17505 | Bird In Hand, PA | 2.7 mi |
| 17501 | Akron, PA | 4.1 mi |
| 17576 | Smoketown, PA | 4.4 mi |
| 17522 | Ephrata, PA | 5.4 mi |
| 17534 | Intercourse, PA | 5.9 mi |
| 17557 | New Holland, PA | 6 mi |
| 17606 | Lancaster, PA | 6.1 mi |
| 17529 | Gordonville, PA | 6.2 mi |
| 17572 | Ronks, PA | 6.5 mi |
| 17602 | Lancaster, PA | 6.5 mi |
| 17601 | Lancaster, PA | 6.9 mi |
Questions about 17540
What is the ZIP+4 code for 17540?
17540 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 17540, you need to look up a specific street address to get them.
What city is 17540?
17540 is assigned to Leola, Pennsylvania, in Lancaster 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.